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Parker, Arizona
(La Paz County)

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Census Data for Parker ...

Population ...

The most recent Census Estimate<1> was for 2016 and it gives Parker a population of 3,026 people.

The last Decennial Census<2> was in 2010, giving Parker a population of 3,083 people.

The town of Parker is located in La Paz County. The 2010 Census gave La Paz County a population of 20,489 people. This means that Parker had 15.05% of the county's total population, making it La Paz's 2nd most populous community.

At the same time, Arizona had a population of 6,392,017 people, meaning that Parker had 0.05% of the total population of Arizona - making it the state's 72nd most populous community.

Area ...

When the Census Bureau conducts a census for a town like Parker, they draw a boundary around the area in which they are going to conduct their count - this is called a sampling area (or 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 the population, area and housing for Parker reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Parker might be slightly different, it's best to check with the U.S. Census Bureau if you need precision.

The 2010 Census shows that the sample polygon for Parker has a total area of 21.99 square miles [57 km²]. Of this total, a small amount of the area is covered by water (0.01 square miles [0 km²]).

La Paz County has a land area of 4,499 square miles [11,654 km²]. At 21.98 square miles [56.9 km²], Parker has 0.49% of the county's total land area.

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 at the center of the polygon). At the time of the 2010 Census, the sampling area was located at:

Lat:   34° 2' 32"   (or 34.04°)             [Map]

Lon:   -114° 13' 35"   (or -114.23°)

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).

Population Density ...

Using the population (3,083 people) and land area (21.98 square miles [56.9 km²]) values from the 2010 Census, Parker had a population density of 140.2 people per square mile [54.1 people/km²].

In comparison, the 2000 Census shows Parker had a population of 3,140 people and a land area of 21.98 square miles [56.9 km²]. This gives a population density of 142.7 people per square mile [55.1 people/km²]

NOTE: Be aware that when comparing population density between the 2000 and the 2010 Census, there were changes in the sampling area for Parker. You need to be careful when making such a comparison, the differences are likely to lead to a questionable comparison. More information about the changes can be found in the section Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Parker had 1,098 Housing Units<3> and with its population of 3,083 people, this averages 2.81 people per Housing Unit.

The 2010 Census shows Parker had a land area of 21.98 square miles [56.9 km²]. This translates to 49.93 Housing Units per square mile [19.28 housing units/km²].

From the Census of 2000: Parker had 1,157 Housing Units, a population of 3,140 people and a land area of 21.98 square miles [56.9 km²]. This gives a density of 2.71 people per Housing Unit and 52.6 Housing Units per square mile [20.31 housing units/km²].

NOTE: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2000 and the 2010 Census, there were changes in the sampling area for Parker and you need to be careful when comparing between the censuses. More information about the nature of these the changes can be found in the section called Census-to-Census Observations ... (see below).

La Paz County ...

Parker is located in La Paz County and is the County Seat for La Paz County.

The county had a population of 20,489 people at the 2010 Census. With it's population of 3,083 people, Parker represented 15.05% of the county's total.

In addition, where the town of Parker has a population density of 140.2 people per square mile [54.1 people/km²], La Paz County averages 4.55 people per square mile [1.76 people/km²].

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

Population Rings for Parker ...

To help identify the number of people who live in Parker and the surrounding area, we have drawn concentric rings centered on Parker. We counted the number of communities within each ring and summed their populations.<4>

  Radius   No of
  Since 2010    
5 mi   [8 km]13,026-1.85%
20 mi   [32 km]13,026-1.85%
30 mi   [48 km]256,769+2.08%

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Parker, 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 Parker. It's important to note that from one Census to the next, the shape and location of the polygon can change. If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Area ...

There is only a very minor difference in the sampling area given between the 2010 Census and the 2000 Census.

The 2010 Census shows that the total area for Parker was 21.99 square miles [57 km²]. Of this total, only a minor amount of the area is covered by water.

The 2000 Census shows a total area of 22 square miles [57 km²]. Of this total, only a minor amount of the area is covered by water.

Location ...

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

For the 2010 Census, the location was given as:

Lat:   34.042332°   (or 34°2'32" N)             [Map]

Lon:   -114.226423°   (or -114°13'35" W)

For the 2000 Census, the location given was:

Lat:   34.144644°   (or 34°8'40" N)             [Map]

Lon:   -114.289686°   (or -114°17'22" W)

The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 7 miles to the southeast<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 (#2413116) to Parker. This identifier also marks a GSP point on the map, and that point lies within the boundaries of Parker. The GNIS point has been mapped to the latitude/longitude:

Lat:   34.028540°   (or 34°1'42" N)             [Map]

Lon:   -114.222410°   (or -114°13'20" W)

The GSP location given for the 2010 Census lies 5,172 feet to the north<6> of the point given by the GNIS for Parker. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Parker.

Miscellaneous Information for Parker ...

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

The GNIS Codes ...

The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Parker:

GNIS ID for Parker: 2413116

GNIS ID for La Paz County: 43540

GNIS ID for 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: 012 (La Paz County)

Place Code: 53070 (Parker)

State & County Code: 04/012 (Arizona / La Paz County)

State & Place Code: 04/53070 (Arizona / Parker)

Misc. Census Codes ...

Parker 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 Parker, it does identify addresses that are in (or near) Parker. 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 Parker: 85344<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 Parker.

Other Roadside Stops ...

Index of Cities, Towns and Villages for Arizona

About La Paz County

About Arizona

Off-the-Road Links ...

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)

The official website for Parker: www.ci.parker.az.us/

The official website for La Paz County: www.co.la-paz.az.us/

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

Footnotes ...

<1>Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2016.

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<2>Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.

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<3>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

- Return to Citation

<4>The communities in our count are those provided by the 2010 Census, so keep in mind that our population rings will only include the people living in those communities. Smaller communities usually don't participate directly in the Census and therefore they won't be included. While our count is a close approximation, it shouldn't be considered as a complete or accurate count.

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<5>The calculated bearing (or the angle) to the 2010 Census location is 207 degrees.

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<6>The calculated bearing (or the angle) to the GNIS point is 13 degrees.

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<7>When looking for a ZIP Code, whether Parker or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

- Return to Citation

For additional information, please visit our Glossary for Parker.