Markham, WA Profile: Facts & Data


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Markham, Washington - Basic Facts

The Markham Census Designated Place had a population of 114 as of July 1, 2020. Markham ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Markham is located at latitude 46.9054 and longitude -123.9977 in Grays Harbor County. The formal boundaries for the Markham Census Designated Place encompass a land area of 1.12 sq. miles and a water area of 0.02 sq. miles. Grays Harbor County is in the Pacific time zone (GMT -8). The elevation is 13 feet.

The Markham Census Designated Place (GNIS ID: 2408183) 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 Markham Census Designated Place is located within Westport Division of Grays Harbor County.


Markham, WA Data & Demographics (As of July 1, 2020)


Total Population 114 (100%)
Population in Households 38 (33.3%)
Population in Families 29 (25.4%)
Population in Group Quarters1 76 (66.7%)
Population Density 102
Diversity Index2 51


Median Household Income $57,940
Average Household Income $65,770
% of Income for Mortgage4 0%
Per Capita Income $10,340
Wealth Index5 58


Total HU (Housing Units) 69 (100%)
Owner Occupied HU 50 (72.5%)
Renter Occupied HU 12 (17.4%)
Vacant Housing Units 7 (10.1%)
Median Home Value $247,500
Average Home Value $218,878
Housing Affordability Index3 0


Total Households 62
Average Household Size 1.0
Family Households 40
Average Family Size 2
  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.


2010-2020 2020-2025
Population 0.26% 0.17%
Households 0.82% 0.64%
Families 1.6% 0.5%
Median Household Income   -0.01%
Per Capita Income   1.69%
Owner Occupied HU   0.79%


Markham, WA - Peer Comparisons by Rank and Percentile

The table below compares Markham to the other 625 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2020 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 # 595 5th
Population Density # 575 8th
Median Household Income # 362 42nd
Housing Affordability Index # 55 9th
Per Capita Income # 624 0th
Diversity Index # 191 70th

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

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