Kelso, WA Profile: Facts & Data


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Kelso, Washington - Basic Facts

The City of Kelso had a population of 12,276 as of July 1, 2018.

The primary coordinate point for Kelso is located at latitude 46.1277 and longitude -122.8774 in Cowlitz County. The formal boundaries for the City of Kelso (see map below) encompass a land area of 8.14 sq. miles and a water area of 0.36 sq. miles. Cowlitz County is in the Pacific time zone (GMT -8). The elevation is 66 feet.

The City of Kelso (GNIS ID: 2410174) 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 Kelso is located within Longview-Kelso Division of Cowlitz County.

Alternate Unofficial Names for Kelso: Wallace's.

Jump to... (On This Page!)
  1. Kelso 2018 Demographic Data
  2. Growth Rates for Kelso (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 - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Kelso, WA Data & Demographics (As of July 1, 2018)


Total Population 12,276
Population in Households 12,231
Population in Familes 9,366
Population in Group Qrtrs 45
Population Density2 1,508
Diversity Index3 47


Median Household Income $40,621
Average Household Income $55,272
Per Capita Income $21,711


Total Housing Units 5,310 (100%)
Owner Occupied HU 2,808 (52.9%)
Renter Occupied HU 2,004 (37.7%)
Vacant Housing Units 499 ( 9.4%)
Median Home Value $161,893
Average Home Value $195,183


Total Households 4,811
Average Household Size 2.54
Family Households 3,033
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2018 2018-2023
Population 0.35% 0.6%
Households 0.23% 0.53%
Families 0.34% 0.46%
Median Household Income   1.95%
Per Capita Income   2.91%

Kelso, WA - Peer Comparisons by Rank and Percentile

The table below compares Kelso to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2018 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 # 101 84th
Population Density # 207 67th
Diversity Index # 214 66th
Median Household Income # 548 13th
Per Capita Income # 553 12th

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

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Compare Washington July 1, 2018 Data
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