The city is usually the name of the main post office. 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. Because it is only an estimator, it is still subject to variation due to other variables. To further illustrate this point, the 2010 Census population is within the most recent ACS margin of error for nearly 75% of ZIPs. As you will learn below, certain geographic areas are frequently referred to by multiple names. We don't just tell you about the quality, we show you the results of our verification and research (see below) and make sure you can quickly understand the most accurate ways to use the data we provide. ZIP Code Boundary Data. 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? Some ZIP codes are points e.g. Data Points. Another way to approximate the population is to use an estimator. Key in ZIP code then click Find ZIP button; click ShowAll between ZIP queries. 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). You have indicated that you intend to use the data for a commercial purpose. The demographics of a ZIP can change over time so we issue frequent updates for statistics. 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. One with multiple city/town names that the Postal Service recognizes as associated with each zip code. Our spreadsheets now include an easy option to look up the statistics for select ZIPs. 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. These unassigned blocks were merged into an adjacent ZCTA based on the length of shared boundary. delivery personnel. 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. Map the boundaries of this ZIP Code and others on any map platform. CBSA: CHAR (5) United States Core Based Statistical Area (CBSA) or Canadian Census Metropolitan Area (CMA) code. Because the area is so densely populated, many different areas within NYC are given names that are not "New York." Land Area - The land area of this ZIP Code in Square Miles. For instance, the example has a point that is very far from the south west portion of the ZIP. Because all of the coordinate calculation methods other than the National Weather Service data rely on Census data, those coordinates are only available for the ZIP codes included by the Census Bureau. For quick information about a specific area code, use the area code search. The result is a coordinate that will be within the largest section of the ZIP code. 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. 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, 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. The lack of additional digits after the decimal serves as a reminder to keep precision in mind when performing any calculations. However, it will always have a state FIPS of 29 and a place/city FIPS of 65000 which makes the geoid 2965000. This unique Area Code by ZIP Code database includes area code splits and overlays*. However, it will always have an FIPS code of 11. polygons with large numbers of addresses using different ZIP Codes. 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. Some ZIP Codes represent very few addresses (sometimes only one) and therefore will not appear in the ZCTA universe. 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. The list of unaccpetable cities may be fine for everyday conversation. However, as an estimator, it isn't perfect. Take ZIP code 71373 for instance. In most instances the ZCTA code is the same as the ZIP Code for an area. Some zip codes are for PO boxes only, unique to an organization, or used by the military. It also has strict privacy limits on data release such that it underestimates the population by more than the expected population growth. It is much more likely that the economic downturn affected the estimates by changing how the population files their tax returns. Other estimates for ZIPs with a very low population should be viewed with skepticism because the IRS data implements other privacy protection measures. All data is consistently labeled, there are no duplicates, quality data sources minimize any inaccuracies, and multiple data sources verify accuracy. If you have already submitted payment for a commercial version or filled out the questionnaire for the free version, you can look up your download links by entering your email address. 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. For example, you are allowed to make copies for backups as long as those backups are not publicly available. The polygon/shape that represents the ZIP code is repeatedly reduced in size until only a single point remains. As another example, St. Louis, MO could be spelled as "St Louis", "St. Louis", or "Saint Louis" in various data sets. Zip Code 00983 - Carolina PR Puerto Rico, USA - Carolina County. Land area updated every 10 years. zipcode; zipcode_type; major_city; post_office_city; common_city_list; county; state; area_code_list To sign up for updates please enter your contact information below. Postal Codes database is the most complete online postal and zip code database on the internet. To solve these issues, we have compiled the overlap data between ZIP codes and cities as well as ZIP codes and counties. You may make unlimited copies as long as each copy you make is for internal company use only. more than most of our competitors that only provide coordinates calculated by the Census Bureau. coverage. 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. They use a method similar to the bounding box method. If you are comparing to other data sets with these identifiers, these identifiers avoid complications that arise from matching to cities/counties that are frequently spelled differently. The full U.S. population is not represented because many individuals are not required to file an income tax return. The IRS documents only around 289 million exemptions compared to a population of 312 million estimated by the Census. Cities by ZIP Code™ For more rapid delivery, please use the recommended or recognized city names whenever possible for this ZIP Code ™. One of the most frequent questions we get is related to matching ZIPs to cities. Columns LandSqMt (Land Area in Square Meters) and WaterSqMt (Water Area in Square Meters) are shown as text/character fields, left-justified, not intended for ranking use. Acceptable cities are recognized by the USPS and should not result in delivery delays. *An Area Code Overlay is an alternate Area Code that applies to the same area as another Area Code. Update when you want. In fact, over 1200 of the missing ZIPs are estimated to have a population of less than 100 people. Postal Service. Much like the land area, there are vast differences in population size. 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. 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: For 2010 only legitimate five-digit areas are defined so there is no longer full nation-wide The approximate coordinates that are a combination of hand-picked coordinates and those from the National Weather Service (NWS) cover over 98% of all active and decomissioned ZIP codes - ZIP Code 54548 Data. Instead of locking our users into a recurring fee, we let you decide when updates are significant enough to warrant the time and cost of updating. 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. DayLight Savings – Y/N Flag indicating whether this ZIP Code observes daylight savings. Read more about the differences between ZIP codes and ZCTAs on our home page. It sets the bar for precision/accuracy extremely high and the population size changes relatively little over time. Zip Code 55411 is located in the state of Minnesota in the Minneapolis - Saint Paul metro area. Some addresses will end up with a ZCTA code different from their ZIP Code. 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. The USPS ZIP Codes identify the individual post office or metropolitan area delivery station associated with mailing addresses. Share: ... Download the ZIP Code Database. Generally, USPS determines a mail route that best suites their needs, they assign a ZIP to that area, and they name the "city" of the ZIP after the post office(s) in that ZIP. If the area of an unassigned enclave was less than two square miles, it was assigned to the surrounding ZCTA. ZIP Code Boundary Data. Immediately download the U.S. ZIP Code Database, licensed from the U.S. Zip codes are limited to those that fall at least partially within LA city boundaries. This coverage is easily seen in the image examples shown for the area around Memphis, TN. Measuring America's People, Places, and Economy. 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. Buy postcodes of the world. LAND O LAKES,WI, ZIP Code 54540 - Database - LAND O LAKES Wisconsin WI Map. You get two overlaps as percentages: percentage of the ZIP in an area and the percentage of the area in the ZIP. They are used to deliver mail. Immediately download the U.S. ZIP Code methods of calculating those coordinates to receive mail for additional about. 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