Alderton, WA Profile: Facts & Data


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Alderton, Washington - Basic Facts

The Alderton CDP(1) had a population of 3,126 as of July 1, 2021.

The primary coordinate point for Alderton is located at latitude 47.1695 and longitude -122.2293 in Pierce County. The formal boundaries for the Alderton Census Designated Place encompass a land area of 5.32 sq. miles and a water area of 0.14 sq. miles. Pierce County is in the Pacific time zone (GMT -8). The elevation is 92 feet.

The Alderton Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Alderton Census Designated Place is located within Puyallup Division of Pierce County.

  1. A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Jump to... (On This Page!)
  1. Alderton 2021 Demographic Data
  2. Growth Rates for Alderton (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Washington Research Tools (Easy Tools & Current Data)
  3. Washington Data Comparison Tool - 2021 Demographics

Alderton, WA Data & Demographics (As of July 1, 2021)


Total Population 3,126 (100%)
Population in Households 3,100 (99.2%)
Population in Families 2,569 (82.2%)
Population in Group Quarters1 26 ( 0.8%)
Population Density 588
Diversity Index2 43


Median Household Income $93,802
Average Household Income $112,977
% of Income for Mortgage4 19%
Per Capita Income $42,317
Wealth Index5 147


Total HU (Housing Units) 1,237 (100%)
Owner Occupied HU 1,023 (82.7%)
Renter Occupied HU 157 (12.7%)
Vacant Housing Units 57 ( 4.6%)
Median Home Value $425,134
Average Home Value $490,015
Housing Affordability Index3 127


Total Households 1,180
Average Household Size 2.63
Family Households 854
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. 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 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.69% 1.11%
Households 0.66% 1.06%
Families 0.75% 1.08%
Median Household Income   2.28%
Per Capita Income   2.75%
Owner Occupied HU   1.33%

Alderton, WA - Peer Comparisons by Rank and Percentile

The table below compares Alderton to the other 625 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 254 60th
Population Density # 402 36th
Median Household Income # 135 79th
Housing Affordability Index # 396 63rd
Per Capita Income # 157 75th
Diversity Index # 266 58th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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