What is the population of Grand Mound CDP?

Grand Mound CDP has 3,711 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #224 of 639 in Washington.

What is the median household income in Grand Mound CDP?

Median household income in Grand Mound CDP is $77,000 a year, 2% below the national figure of $78,538.

How much does it cost to rent or buy in Grand Mound CDP?

Median gross rent is $1,273 a month and the median home value is $325,000, so rent absorbs about 19.8% of median household income.

Is Grand Mound CDP affordable compared with the rest of the US?

Homes cost about 4.2× the local median income here versus roughly 3.9× nationally, so Grand Mound CDP is less affordable to buy in than the typical US market, and rent takes 19.8% of median income against the 30% cost-burden line.

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Washington · Census place 27890

Grand Mound, WA population, income and ZIP codes

Quick answer

The population of the city of Grand Mound, Washington (Grand Mound, WA — Census place “Grand Mound CDP”) is 3,711 residents, ranking #224 of 639 places in Washington. Median household income is $77,000, the median home is worth $325,000 and median gross rent runs $1,273 a month. Looking for the Grand Mound Washington ZIP code list? 2 ZIP codes serve Grand Mound, WA: 98531, 98579.

Population: 3,711Grand Mound CDP residents
Median household income: $77,000Past 12 months, inflation adjusted
Median home value: $325,000Owner-occupied units
Median gross rent: $1,273Rent plus utilities, monthly
Median age: 33.2 yrsAll residents
Homeownership rate: 73.8%Owner-occupied households

Grand Mound ZIP codes (Washington)

Census ZCTAs whose delivery area overlaps Grand Mound.

The Grand Mound WA ZIP code list below covers 2 ZIP codes. Open any one for its population, income, housing and rent profile.

What the numbers mean in Grand Mound CDP

Housing cost measured against local earnings.

A household earning the Grand Mound CDP median would spend about 19.8% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.2× the median household income; nationally that ratio sits near 4.5×. Poverty affects 8.4% of residents and 73.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Grand Mound CDP, WA in context

How this area compares with national benchmarks.

Grand Mound CDP is a small town in Washington, with 3,711 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #224 of 639 ranked by population — larger than 65% of them. The median age here is 33.2 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Grand Mound CDP earn a median of $77,000 a year, 2% below the national figure of $78,538 and 15% below the $90,592 median for the 393 Washington cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 8.4% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Grand Mound CDP is valued at $325,000, 7.1% above the national figure and 31% below the $468,400 peer median, while median gross rent runs $1,273 a month, 9.5% below the national figure, or roughly $15,276 across a full year. A household on the local median income would put about 19.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.2×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 73.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

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Frequently asked questions

Common questions about this area.

What is the population of Grand Mound CDP?: Grand Mound CDP has 3,711 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #224 of 639 in Washington.
What is the median household income in Grand Mound CDP?: Median household income in Grand Mound CDP is $77,000 a year, 2% below the national figure of $78,538.
How much does it cost to rent or buy in Grand Mound CDP?: Median gross rent is $1,273 a month and the median home value is $325,000, so rent absorbs about 19.8% of median household income.
Is Grand Mound CDP affordable compared with the rest of the US?: Homes cost about 4.2× the local median income here versus roughly 3.9× nationally, so Grand Mound CDP is less affordable to buy in than the typical US market, and rent takes 19.8% of median income against the 30% cost-burden line.
How current is this Grand Mound CDP data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.