The demographics of a ZIP can change over time so we issue frequent updates for statistics. USPS ZIP Codes are not areal features but a collection of mail delivery routes. Privacy protection measures prevent the IRS from disclosing ZIP level data for all income brackets. City limits are not. You may not make the data set publicly available for download over the internet or distribute the complete data set as part of an application provided to customers. coverage. Acceptable cities are recognized by the USPS and should not result in delivery delays. Our spreadsheets now include an easy option to look up the statistics for select ZIPs. This Enterprise Class ZIP Code database is dramatically superior to the many repackaged U.S. ZIP Code database products on the market today. ZIP Code 54548 Data. We go beyond just offering the interal points offered by the Census Bureau and competitors by providing more precise methods of calculating those coordinates. However, it will always have a state FIPS of 29 and a place/city FIPS of 65000 which makes the geoid 2965000. USPS ZIP Codes are not areal features but a collection of mail delivery routes. The easiest way to think about this is that it is difficult to provide an estimate with only a 5%-10% margin of error based on only surveying 10% of the population. However, USPS uses those names to indicate the city for the ZIP codes located in those areas. 01003. And API in 0.2.X NOT COMPATIBLE with 0.1.X, please read Document for more information.. Standard Agawam Hampden County Area Code 413. Area Code Database: Deluxe Database: Database of all U.S. area codes (NPA NXX) and their related information. For these reasons, any of the methods for calculating coordinates should suffice for the majority of the population. Using the number of exemptions as a population estimate results in a root mean square error (RMSE) of 2489 while the alternative formula results in an RMSE of 2545 (lower is better). This method is quite well suited to label positioning and is actually how the labels positions are determined on maps throughout the site. As you can see from the example image, about the only time the city limits and ZIP boundaries match up are across state lines and that isn't even universally true. None of them are actually an incorporated city. The most simple method is to use the formula for a rectangle that uses (latitude_min + latitude_max) / 2 for the latitude coordinate. We have found that there is a correlation between the two data sets. After all of the census blocks with addresses were assigned a preliminary ZCTA code, blocks were aggregated by code to create larger areas. Address, Postal. For quick information about a specific area code, use the area code search. Such zip codes are not areas and therefore are not represented by ZCTAs. Share: ... Download the ZIP Code Database. However, as an estimator, it isn't perfect. The internal points are calculated by the Census Bureau. If you would like to redistribute the data or have a question about acceptable usage, please contact us for further clarification and pricing options. Some ZIP Codes represent very few addresses (sometimes only one) and therefore will not appear in the ZCTA universe. Geocoded ZIP Codes come with Population data, Area Code, Time Zone, FIPs, CBSA, Medicare, and 90+ additional columns of data. Notice how many rural areas are grouped with nearby cities because they share delivery resources. View all the available Gazetteer files from the Geography Program. as to their formula for estimating the population for a given ZIP. In fact, over 1200 of the missing ZIPs are estimated to have a population of less than 100 people. The other is a unique list of zip codes and the assoaicated "primary" city/town name. The reason in the first place that you're looking for a zip code database is to expand your business presence. In creating ZCTAs, the Census Bureau took the most frequently occurring ZIP Code in an area for the ZCTA code. Canadian Postal Code Database Get all Canadian Postal Codes and their information in one easy to use database. Staten Island, Brooklyn, and Bronx are all famous parts of NYC that can easily be picked out in the example. For instance, DC can be represented as "Washington, DC", "Washington D.C.", "District of Columbia", etc. towards ZIP Codes used for city-style mail delivery, thus there may be ZIP Codes that are primarily 01002. Key in ZIP code then click Find ZIP button; click ShowAll between ZIP queries. In other words, we asked this question: if the IRS estimates that the population of a ZIP increased over a certain period of time, does the ACS data also indicate a population increase? delivery. To avoid overcrowding, only a few labels are shown. We only issue updates for significant changes, 41,968 active and 664 decommissioned ZIP codes, Military place names: MPSA Election Ballot, Time zone, area codes, and country: Yahoo, Counties: Calculated using data from the Census (2010), Approximate latitude/longitude: National Weather Service, Other coordinates: Calculated using data from the Census (2010), Estimated population: IRS (2005-2015), ACS (2011-2016), Population, housing units, demographics: Census (2010), Income, real estate, and education: Census ACS (2013). Source: U.S. Census Bureau, data file from Geography Division based on the TIGER/Geographic Identification Code Scheme (TIGER/GICS) computer file. The list of unaccpetable cities may be fine for everyday conversation. The black outline shows the area of the official city limits. To protect privacy, the IRS also omits population estimates for ZIPs with less than 100 returns (approximately 1,500 ZIPs with a population of less than 400,000). Using this calculation method will result in a point outside of the ZIP code approximately 8% of the time. Get all this data for every U.S. ZIP Code in 1 easy to use database. ZIP+4 ZIP Code Database Covering every address in the U.S., get the +4 information you need. "There are significant changes to the 2010 Code Tabulation Areas delineation from that used in While that may seem like a large discrepancy, you can see from the chart that over 93% of those ZIPs without Census data are for single buildings or military usage where an approximation is more than adequate. These  data are available through data.census.gov. As another example, St. Louis, MO could be spelled as "St Louis", "St. Louis", or "Saint Louis" in various data sets. In most instances the ZCTA code is the same as the ZIP Code for an area. View all the available relationship files from the Geography program. Because it can take up to 5 years for people to fully utilize a ZIP, ZIP changes are minimized and a 10 year old data set would still contain 99% of currently active 5 digit ZIP codes. The polygon/shape that represents the ZIP code is repeatedly reduced in size until only a single point remains. Please check the Privacy Policy of the site you are visiting. The IRS documents only around 289 million exemptions compared to a population of 312 million estimated by the Census. As you can see, the lack of precision due to rounding to two decimal places is insignificant when compared to the reduction in precision caused by reducing a complex shape to a single point. For instance, economic changes or changes in tax policy are likely to affect the population estimates. For instance, the example has a point that is very far from the south west portion of the ZIP. We use multiple sources to obtain the most accurate robust database possible. ", "Data users should not use Code Tabulation Areas to identify the official USPS ZIP Code for mail The first issue with the accuracy of the IRS estimates is that their are using exemptions as an estimator for populations as opposed to directly trying to calculate population size. The Code Tabulation Areas process used primarily residential addresses and was biased ZIP Code Tabulation Areas (ZCTAs) are generalized areal representations of United States Postal Service (USPS) ZIP Code service areas. There is inherently some loss in precision. The official US Postal Service name for 55411 is MINNEAPOLIS, Minnesota. Click here to learn more. ZIP Code 33012 Data. Plus, we haven't included dozens of fields that you will never use and only slow you down. You may make unlimited copies as long as each copy you make is for internal company use only. * While the cities according to USPS and the primary county are freely available, Another method for calculating the ZIP coordinates involves complex shape analysis of the polygon that represents the ZIP code called polygon offsetting or polygon buffering. When matching to cities/places, the data file also contains a row for the portion of the ZIP that is outside of city limits. In general, the IRS underestimates the population of a ZIP as compared to ZCTAs by 10% to 20% for two reason. Land Area - The land area of this ZIP Code in Square Miles. Get all this data for every U.S. ZIP Code in 1 easy to use database. down to very small fractions of a mile which is much smaller than the geographic area covered by a ZIP code. When working with any coordinates of ZIP codes, there are two key points to remember: Please take the above into consideration when choosing which set of coordinates to use. The Census Bureau creates ZIP Code Tabulation Areas (ZCTA) based on their address database. Land Area and Persons Per Square Mile. As discussed in their analysis, the population mean center is frequently preferred over the population median center because it responds to more slight changes in population. a ZIP code may be associated with a post office, a university or a large corporate complex. 2010 Census Populations by Zip Code Metadata Updated: December 2, 2020. Changing the latitude or longitude coordinate by a single hundredth of a decimal place results in a shift of approximately 1 mile in any direction. We have included the margin of error with the ACS estimates so that those looking to create their own estimate can make their own judgement calls Because it is only an estimator, it is still subject to variation due to other variables. The ACS is also performed by the Census Bureau so it has approximately the same coverage. To get those huge savings, only a small percentage of the population is surveyed which leaves us with a range the population likely falls within instead of a precise number. Immediately download the U.S. ZIP Code Database, licensed from the U.S. Many of these coordinates have been hand chosen. Zip Code 55411 is located in the state of Minnesota in the Minneapolis - Saint Paul metro area. ZIP Code Boundary Data. Instead of spending $13 billion to survey the entire country, the Census Bureau spends around $250 million to send the American Community Survey (ACS) to part of the country. Measuring America's People, Places, and Economy. The boundaries of a ZIP code generally have nothing to do with city limits. For 2010 only legitimate five-digit areas are defined so there is no longer full nation-wide Data Points. ZIP Code Tabulation Areas (ZCTAs) are generalized areal representations of United States Postal Service (USPS) ZIP Code service areas. AEI-adjusted residential land price and land share indicators at the census tract, ZIP code, county, and metro level are available for much of the US. That is, a zip code may appear multiple times with different city names. Surveying a large portion of the population is expensive (especially with the large number of questions besides population included in the ACS). More Info: Get all the fields in our standard Area Code database and a lot more. However, that correlation only becomes apparent on estimates for ZIPs that have a very low margin of error. To sign up for updates please enter your contact information below. Each can be useful in different types of situations. Understanding Geographic Identifiers (GEOIDs), Survey of Income and Program Participation (SIPP), ZIP Code Tabulation Areas (ZCTAs) Delineation Animation, Cover the full extent of the nation - "wall-to-wall" coverage, "XX" suffix used to represent large land areas such as national parks, "HH" suffix used to represent large water bodies, Includes the U.S., Puerto Rico, and the Island Areas, Do not cover the full extent of the nation - "holes" exist, "XX" retired - Large land areas such as national parks do not have ZCTA coverage, "HH" retired - Large water bodies do not have ZCTA coverage, 2007 - 2011 American Community Survey 5-year estimates and later. Overlays were created so that an area code would not have to be split again. the nation, states, etc), they do not publish population centers for ZIP codes. We've done the work to combine data from multiple sources to make sure you have all of the fields you need. ZCTAs were created using residential and nonresidential ZIP Codes that are available in the Census Bureau’s MAF/TIGER database. These unassigned blocks were merged into an adjacent ZCTA based on the length of shared boundary. However, we recommend you fall back to using the approximate coordinates from the National Weather Service in the case that you need coordinates for specific ZIPs other than the most commonly used ones. To solve these issues, we have compiled the overlap data between ZIP codes and cities as well as ZIP codes and counties. We include the estimates based on the past 5 years worth of surveys because they are based on the largest sample to provide the most precise estimates. As discussed below, it is affected by economic changes as well as tax policy changes. This unique Area Code by ZIP Code database includes area code splits and overlays*. Time Zone - Federal Information Processing Standards code given to each state or territory. We've been providing data to our clients for years and over 225,000 different individuals, organizations, and corporations of all sizes have trusted us to provide them with the high quality data that they need. ZIP Code Boundary Data. However, we realize that there are many other uses for this data set so we have included lists of other cities that are recognized by USPS. ZIPs with the same city according to USPS have the same color. The max longitude to determine ZIP code bounding box: area_land: Land area in square meters (divide by 2,589,988.110336 for square miles) area_water: Source: U.S. Census Bureau, Census of Population and Housing. Next, the most frequently occurring ZIP Code within each block was assigned to the entire census block as a preliminary ZCTA code. View the cartographic boundary files in shapefile format from 2018 and previous years. Remember that the boundaries of a ZIP code generally have nothing to do with city limits. Some ZIP codes are points e.g. This coverage is easily seen in the image examples shown for the area around Memphis, TN. 90% of the time, the true population should be within the range of estimated +/- the margin. Take ZIP code 71373 for instance. DayLight Savings – Y/N Flag indicating whether this ZIP Code observes daylight savings. Instead, they'll keep delivering along the street to the next intersection or some other boundary that makes more sense to allocating their available resources, i.e. The Census Bureau used block group boundaries to identify and group unassigned blocks. Futher, USPS does not always use the name of the incorporated city in which the ZIP code is located. The term ZCTA was created to differentiate between this entity and true USPS ZIP Codes.  ZCTA is a trademark of the U.S. Census Bureau; ZIP Code is a trademark of the U.S. PIN codes list. For example, the Navy may use a ZIP for several aircraft carriers. *** All Zip Codes Updated as of Dec. 2020 *** No zip code database is complete unless it is accurate. All data is consistently labeled, there are no duplicates, quality data sources minimize any inaccuracies, and multiple data sources verify accuracy. As you will learn below, certain geographic areas are frequently referred to by multiple names. Even so, when evaluating how often you want to update your data, keep in mind that many pieces of information about a ZIP code can be updated over time. Recall that the population of the country is expected to change by less than 5% over a 5 year period and the population of any given ZIP is likely to change by less than 10%. Use LandSqMi (Land Area in Square Miles) and WaterSqMi (Water Area in Square Miles) for ranking. Get all this data for every U.S. ZIP Code in 1 easy to use database. So, ZIP codes cover a much larger portion of the land area in the US than city limits. The graph below shows the number of ZIPs by the margin of error as a percentage of the population. *An Area Code Overlay is an alternate Area Code that applies to the same area as another Area Code. Only the ZIPs that are studied by the Census Bureau that are geographically based (approximately 33,000) are included. It sets the bar for precision/accuracy extremely high and the population size changes relatively little over time. Some addresses will end up with a ZCTA code different from their ZIP Code. Another way to approximate the population is to use sampling. From version 0.2.0, uszipcode use a more up-to-date database, and having a crawler running every week to collection different data points from multiple data source. Using these numbers you can find the primary city/county for a ZIP or the primary ZIP for a city/county. These rows can be identified because the place_name will be "Outside city limits", the last 5 digits of the place_geoid will be 99999, and the place_type will be "None". Some zip codes are for PO boxes only, unique to an organization, or used by the military. While the Census Bureau publishes centers of population for many different geographic areas of the country (ex. As confirmed by the Internal Revenue Service (IRS), the number of tax returns filed for a ZIP code can be used to approximate the number of households and the number of exemptions can be used to approximate the population. If the area of an unassigned enclave was less than two square miles, it was assigned to the surrounding ZCTA. Our research backs up the suggestions put forth by the IRS. However, using them when addressing mail will likely result in delivery delays. If it's appropriate to your … While 289 million exemptions are reported when examining state level data that is not subject to privacy protection, only 277 million are reported after privacy protection eliminates some data. International zip code database. Over half of residents filed their tax return using a new ZIP code the first year it was introduced, but it can take up to 5 years for a ZIP to become fully active. ... • Area Code Database • Historical Zip Codes • FREE Radius Application • FREE Store Locator • FREE Mobile App ... Land Area: 3.464 sq mi: 113th Congressional District: 113th Congressional Land Area: It is highly unlikely that the population shrank by 5% in 2008. The radius of this shift is shown in the graphic in green. OLSON: VARCHAR (128) Internet Assigned Numbers Authority (IANA) time zone database time zone identifier or time zone name for the Rate Center geographic location. View all the available mapping files from the Geography program. For the 2010 Census, large water bodies and large unpopulated land areas do not have ZCTAs. The 2010 Census was done precisely to estimate population sizes and so provides estimates for the most ZIP codes. To further illustrate this point, the 2010 Census population is within the most recent ACS margin of error for nearly 75% of ZIPs. However, it will always have an FIPS code of 11. Note that not all ZIP codes, cities, or counties will be included in this data file. You can also find the area code for a city or town with population greater than 20,000. The Census Bureau first examined all of the addresses within each census block to define the list of ZIP Codes by block. As you can see from the image where this method is shown in black, this may be significantly different from the other two calculation methods. The lack of additional digits after the decimal serves as a reminder to keep precision in mind when performing any calculations. The second map shows all ZIP codes with the same primary city shaded using the same color. Watch the demo of how you can combine the. The largest objection to the census data is that it tabulates population based on ZIP Code Tabulation Area (ZCTA) as opposed to actual ZIP code. delivery personnel. It is much more likely that the economic downturn affected the estimates by changing how the population files their tax returns. Postal Codes database is the most complete online postal and zip code database on the internet. There are presently two versions fo the file. Think of it this way: if the postal carrier is driving down a road delivering mail and happens to cross the city limits, it makes little sense to have them stop delivering for the rest of the houses on the street simply because the city limits changed. ZIP Codes assigned to businesses only or single delivery point address will not necessarily appear as ZCTAs. We constantly monitor USPS data for major changes and release new data when there are significant changes. However, you may use on public networks such as the internet if used within a lookup application such as a "nearest store lookup" where the data set is not distributed to end users. You have indicated that you intend to use the data for a commercial purpose. Recommended or recognized city names fields you need approximately 10 % to 20 % for two reason color! Complex shape/polygon into a single point area and the assoaicated `` primary city/town. Changes relatively little over time so we issue frequent updates for statistics is for internal company only... Indicated that you 're looking for a ZIP Code addresses within each Census block to define the list of codes., Tennessee % for two reason based so some will be included in first. Not necessarily appear as ZCTAs all ZIP codes assigned to the 2010 Census, large Water and... 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Sources minimize any inaccuracies, and number of questions besides population included in Minneapolis... Based on area, there are significant changes to ZIP codes are n't introduced. The example has a point that is very far from the Geography program all the relationship... Cities, or counties will be included in this data comes from the Geography.! ; major_city ; post_office_city ; common_city_list ; County ; state ; area_code_list some ZIP codes and the percentage the... Code to create larger areas are generalized areal representations of United States Core based area... ( ex zip code land area database mail delivery routes estimate population sizes and so provides estimates for ZIPs are! To how ZCTAs are tabulated 0.1.X, please use the designation `` new York, illustrates.