If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. The Housing Affordability Index base is and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above indicate increased affordability, while values below indicate decreased affordability. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources.
It represents the wealth of the area relative to the national level. Values above or below represent above-average wealth or below-average wealth compared to the national level. Results : Show 20 Results Show Results. Hispanic Population:. Asian Population:. American Indian Population:. Hawaiian Population:. Other Population:. Male Population:. Female Population:. Median Age:. Male Median Age:. Female Median Age:. Residential Mailboxes:. Business Mailboxes:.
Total Delivery Receptacles:. Number of Businesses:. Annual Payroll:. Water Area:. Land Area:. Single Family Delivery Units:. Multi Family Delivery Units:. Total Beneficiaries:. Retired Workers:. Disabled Workers:. Despite the fact that ZIP codes seem to be geographic in nature, that wasn't their intended purpose. They are intended to group mail to allow the USPS to deliver mail more efficiently. Some ZIP codes will span multiple states in order to make mail routing and delivery more efficient.
In most cases, addresses in close proximity to each other are grouped in the same ZIP code which gives the appearance that ZIP codes are defined by a clear geographic boundary. However, some ZIP codes have nothing to do with geogaphic areas. When ZIP codes appear to be geographically grouped, a clear shape cannot always be drawn around the ZIP code because ZIP codes are only assigned to a point of delivery and not the spaces between delivery points. In areas without a regular postal route or no mail delivery, ZIP codes may not be defined or have unclear boundaries.
The main issue is discussed above: there simply isn't always a clear geographic boundary for a ZIP code. The Census Bureau and many other commercial services will try to interpolate the data to create polygons shapes using straight lines to represent the approximate area covered by a ZIP code, but none of these maps are official or entirely accurate. They provide a very close approximation of the area covered by a ZIP code.
You can easily notice some of the boundary issues when viewing our maps. Very rural areas aren't labeled as belonging to a ZIP code such as much of Nevada and Utah where there are few, if any, addresses to deliver mail. If the address is on the same street as a ZIP code boundary on the map, be sure to search for the full street address to determine the ZIP code instead of relying on the map. Their purpose is to convey statistical data about regions that are familiar to most citizens.
As discussed above, it is difficult to precisely define a geographic area covered by a ZIP code. ZCTAs were developed to account for some of the difficulties in assigning an area to a ZIP code and to precisely define a geographic area.
In general, they are updated once every 10 years for the Census. The Census assigns an area to a ZCTA according to census blocks the smallest geographic unit used by the census.
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