Sumner, WA Profile: Facts & Data


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Sumner, Washington - Basic Facts

The City of Sumner had a population of 10,507 as of July 1, 2021.

The primary coordinate point for Sumner is located at latitude 47.2032 and longitude -122.2404 in Pierce County. The formal boundaries for the City of Sumner encompass a land area of 7.52 sq. miles and a water area of 0.11 sq. miles. Pierce County is in the Pacific time zone (GMT -8). The elevation is 75 feet.

The City of Sumner has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

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

Jump to... (On This Page!)
  1. Sumner 2021 Demographic Data
  2. Growth Rates for Sumner (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

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


Total Population 10,507 (100%)
Population in Households 10,465 (99.6%)
Population in Families 7,951 (75.7%)
Population in Group Quarters1 42 ( 0.4%)
Population Density 1,395
Diversity Index2 47


Median Household Income $74,394
Average Household Income $92,605
% of Income for Mortgage4 23%
Per Capita Income $38,590
Wealth Index5 90


Total HU (Housing Units) 4,623 (100%)
Owner Occupied HU 2,434 (52.6%)
Renter Occupied HU 1,943 (42.0%)
Vacant Housing Units 246 ( 5.3%)
Median Home Value $411,593
Average Home Value $470,561
Housing Affordability Index3 110


Total Households 4,377
Average Household Size 2.39
Family Households 2,654
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 0.95% 1.02%
Households 0.85% 1.0%
Families 0.7% 0.94%
Median Household Income   2.03%
Per Capita Income   2.62%
Owner Occupied HU   1.77%

Sumner, WA - Peer Comparisons by Rank and Percentile

The table below compares Sumner 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 # 122 81st
Population Density # 224 64th
Median Household Income # 255 59th
Housing Affordability Index # 263 42nd
Per Capita Income # 210 67th
Diversity Index # 234 63rd

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

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