Census Data for Fountain Hills

Population ...

The most recent Census Estimate<1> was for 2019 and it gave Fountain Hills a population of 25,654 people.

The last Decennial Census<2> was in 2010, which gave Fountain Hills a population of 22,489 people.

The town of Fountain Hills is located in Maricopa County. The 2010 Census gave Maricopa County; a population of 3,825,110 people. This means that Fountain Hills had 0.59% of the county's total population, making it Maricopa's 15th most populous community.

At the same time, Arizona had a population of 6,392,017 people, meaning that Fountain Hills had 0.35% of the total population of Arizona - making it the state's 32nd most populous community.

Area ...

The 2010 Census shows that the sampling area for Fountain Hills has a total area of 20.42 square miles [52.9 km²]. Of this total, a small amount of the area is covered by water (0.09 square miles [0.2 km²]).

Maricopa County has a land area of 9,200 square miles [23,828.3 km²]. At 20.33 square miles [52.7 km²], Fountain Hills has 0.22% of the county's total land area.

• Continue Reading ...
  • When the Census Bureau conducts a census for a town like Fountain Hills, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the town.
  • Things like population, area and housing for Fountain Hills reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Fountain Hills might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
  • Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:
  • Lat:   33° 36' 24"   (or 33.61°)
  • Lon:   -111° 44' 13"   (or -111.74°)
  • More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Fountain Hills had 13,167 Housing Units<3> and with its population of 22,489 people, this averages 1.71 people per Housing Unit.

• Continue Reading ...
  • The 2010 Census shows Fountain Hills had a land area of 20.33 square miles [52.7 km²]. This translates to 644 Housing Units per square mile [249 housing units/km²].
  • From the Census of 2000: Fountain Hills had 10,491 Housing Units, a population of 20,235 people and a land area of 18.17 square miles [47.1 km²]. This gives a density of 1.93 people per Housing Unit and 575 Housing Units per square mile [222.3 housing units/km²].
  • Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 and the 2000 Census, there were changes in the sampling area for Fountain Hills and you need to be careful when comparing between the censuses. More information about these differences can be found in the section called Census-to-Census Observations ... (see below).

Maricopa County ...

The community of Fountain Hills is located in Maricopa County<4>.

The county had a population of 3,825,110 people at the 2010 Census. With it's population of 22,489 people, Fountain Hills represented 0.59% of the county's total.

In addition, where the town of Fountain Hills has a population density of 1,101 people per square mile [425.2 people/km²], Maricopa County averages 415.8 people per square mile [160.5 people/km²].

For more information, please visit our Census Page for Maricopa County.

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Fountain Hills, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Fountain Hills. It's important to note that from one Census to the next, the shape and location of the polygon can change.

• Continue Reading ...
  • Although we don't have specific information about the shape of the polygon for Fountain Hills or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
  • If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Location ...

While generally coinciding with the GPS location (latitude/longitude) of Fountain Hills, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Fountain Hills.

• Continue Reading ...
  • For the 2010 Census, the location was given as:
  • Lat:   33.606701°   (or 33°36'24" N)
  • Lon:   -111.737015°   (or -111°44'13" W)
  • For the 2000 Census, the location given was:
  • Lat:   33.604811°   (or 33°36'17" N)
  • Lon:   -111.728526°   (or -111°43'42" W)
  • The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 2,668 feet to the west<5> of the location that was used in the 2000 Census.
  • The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#2412647) to Fountain Hills. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Fountain Hills. The GNIS point has been mapped to the latitude/longitude:
  • Lat:   33.607245°   (or 33°36'26" N)
  • Lon:   -111.739610°   (or -111°44'22" W)
  • The GPS location given for the 2010 Census lies 812 feet to the east<6> of the point given by the GNIS for Fountain Hills. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Fountain Hills.

Miscellaneous Information for Fountain Hills ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Maricopa County or the town of Fountain Hills:

• The GNIS Codes ...
  • The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Fountain Hills:
  • GNIS ID for Fountain Hills: 2412647
  • GNIS ID for Maricopa County: 37026
  • GNIS ID for State of Arizona: 1779777

• The FIPS Codes ...
  • An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
  • State Code: 04 (Arizona)
  • County Code: 013 (Maricopa County)
  • Place Code: 25300 (Fountain Hills)
  • State & County Code: 04/013 (Arizona / Maricopa County)
  • State & Place Code: 04/25300 (Arizona / Fountain Hills)

• Misc. Census Codes ...
  • Fountain Hills is located in Census Region #4 (the West Region) and Division #8 (the Mountain Division).

• The US Postal Service ZIP Code ...
  • While some people have used a ZIP code to identify a community, the purpose of the ZIP code was to make mail delivery more efficient by grouping addresses together. Although the ZIP Code doesn't specifically identify a town like Fountain Hills, it does identify addresses that are in (or near) Fountain Hills. It's important to remember that the boundaries of a ZIP Code can be changed, re-assigned or overlapped with other ZIP Codes.
  • The ZIP code for Fountain Hills:85268-85269<7>

• Census ZCTA Codes ...
  • The US Census Bureau created statistical entities that they call ZIP Code Tabulation Areas (ZCTAs) and these ZCTAs are frequently confused with the ZIP codes that come from the US Postal Service (USPS).
  • ZCTAs were first created for the 2000 Census and at that time, they were based upon the USPS ZIP codes. While largely covering the same areas, the boundaries of a ZCTA do not necessarily match the boundaries of a postal ZIP code with the same number. For example, while a postal ZIP code can cross a county or state line, a Census ZCTA can not. They should be treated as separate entities with no correlation between them.

For more information about the various Federal identification codes, please visit our Misc Page for Fountain Hills.

Off-the-Road Links ...

The official website for Fountain Hills: www.ci.fountain-hills.az.us/

The official website for Maricopa County: www.maricopa.gov/

The official website for State of Arizona: https://az.gov/

The official website of the U.S. Census Bureau

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)