Census tract · Whatcom County
Census Tract 109, Whatcom County, Washington
Census Tract 109, GEOID 53073010900, in Whatcom County, Washington, outside any city, town or census-designated place. 957 residents in the ACS 2020-2024 5-year estimates (±167); the 2020 Census counted 934.
Residents, 2020-2024
957
±167 (90% margin)
2020 Census count: 934
Median household income
$83,000
±$23,450 (90% margin)
Whatcom County: $81,784
Median home value
$579,000
±$52,507 (90% margin)
Whatcom County: $585,800
Median gross rent
not published
Whatcom County: $1,555
Where is Census Tract 109?
Census Tract 109 is one of 54 census tracts in Whatcom County, Washington. It covers 9.26 square miles of land, 101 residents per square mile in 2020. Its GEOID, 53073010900, names it uniquely (how tract numbers and GEOIDs work).
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 109?
The 2020-2024 American Community Survey puts Census Tract 109's population at 957 (±167) in 458 households; the 2020 Census counted 934 residents and 899 housing units.
| Measure | Tract 109 | Whatcom County |
|---|---|---|
| Total population | 957 ±167 | 230,503 |
| Households | 458 ±82 | 94,021 |
| Average household size | 2.09 ±0.27 | 2.40 |
| Housing units | 860 ±91 | 103,520 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 109?
The median resident of Census Tract 109 is 61.1 years old; 9.3% are under 18 and 41.3% are 65 or older. The largest group is non-Hispanic white residents at 82.7%, then Hispanic or Latino residents (of any race) at 6.3%. 7.4% of residents were born outside the United States.
| Measure | Tract 109 | Whatcom County |
|---|---|---|
| Median age | 61.1 ±5.0 | 38.4 |
| Under 18 years | 9.3% ±4.7 pts | 18.5% |
| 65 years and over | 41.3% ±8.2 pts | 18.9% |
| Hispanic or Latino (any race) | 6.3% ±4.1 pts | 10.6% |
| White alone, not Hispanic | 82.7% ±7.3 pts | 75.7% |
| Black or African American alone, not Hispanic | 0.5% ±0.8 pts | 0.9% |
| Asian alone, not Hispanic | 3.4% ±3.1 pts | 4.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.6 pts | 1.6% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.1 pts | 0.2% |
| Two or more races, not Hispanic | 5.0% ±3.5 pts | 6.2% |
| Some other race alone, not Hispanic | 1.9% ±2.6 pts | 0.4% |
| Born outside the United States | 7.4% ±4.3 pts | 9.9% |
| Speak a language other than English at home (age 5+) | 6.6% ±4.7 pts | 12.5% |
| Civilian veterans (age 18+) | 11.1% ±3.8 pts | 6.3% |
| With a disability | 12.7% ±4.4 pts | 14.3% |
| No health insurance coverage | 4.3% ±3.8 pts | 5.8% |
| High school graduate or higher (age 25+) | 98.1% ±1.8 pts | 93.8% |
| Bachelor's degree or higher (age 25+) | 59.6% ±8.1 pts | 39.3% |
| Graduate or professional degree (age 25+) | 22.1% ±7.3 pts | 14.9% |
| Lived in the same house a year earlier | 85.9% ±6.2 pts | 84.9% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 109 earn?
Half of the 458 households in Census Tract 109 earn less than $83,000 a year (±$23,450), against $81,784 across Whatcom County: 32nd highest of the county's 54 tracts with a reliable estimate. 7.3% of residents live below the poverty line.
| Measure | Tract 109 | Whatcom County |
|---|---|---|
| Median household income | $83,000 ±$23,450 | $81,784 |
| Mean household income | $110,373 ±$24,417 | $109,592 |
| Per capita income | $52,853 ±$8,160 | $45,361 |
| People below the poverty line | 7.3% ±4.7 pts | 12.9% |
| Children under 18 below the poverty line | 0.0% ±34.3 pts | 13.6% |
| Households receiving SNAP | 5.7% ±3.9 pts | 11.7% |
| Households with a computer | 94.3% ±7.2 pts | 97.6% |
| Households with a broadband subscription | 92.4% ±7.4 pts | 93.7% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 109?
Owners occupy 88.9% of Census Tract 109's occupied homes and renters 11.1%. The median owner-occupied home is valued at $579,000 by its owner (±$52,507).
| Measure | Tract 109 | Whatcom County |
|---|---|---|
| Median home value (owner-occupied) | $579,000 ±$52,507 | $585,800 |
| Renters paying 35% or more of income on rent | 13.3% ±22.9 pts | 49.6% |
| Median monthly owner costs, with a mortgage | $2,578 ±$262 | $2,307 |
| Owner-occupied homes | 88.9% ±8.2 pts | 63.7% |
| Renter-occupied homes | 11.1% ±8.2 pts | 36.3% |
| Housing units | 860 ±91 | 103,520 |
| Single-family detached homes | 90.9% ±4.9 pts | 62.8% |
| Mobile homes | 2.6% ±2.4 pts | 6.3% |
| Built 2020 or later | 0.0% ±4.5 pts | 2.4% |
| Built 2010 to 2019 | 4.0% ±2.9 pts | 12.2% |
| Built 1939 or earlier | 9.2% ±3.7 pts | 11.5% |
| Households with no vehicle | 0.9% ±1.5 pts | 6.4% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 109 get to work?
52.7% of Census Tract 109's workers drive alone and 40.3% work from home. The average trip to work takes 34.0 minutes.
| Measure | Tract 109 | Whatcom County |
|---|---|---|
| In the labor force (age 16+) | 45.5% ±6.8 pts | 63.1% |
| Unemployment rate | 3.0% ±4.3 pts | 4.8% |
| Drove alone to work | 52.7% ±13.3 pts | 69.2% |
| Carpooled | 0.0% ±10.2 pts | 7.5% |
| Public transportation | 0.0% ±10.2 pts | 1.8% |
| Walked | 2.2% ±2.6 pts | 3.9% |
| Worked from home | 40.3% ±12.8 pts | 14.8% |
| Mean travel time to work | 34.0 min ±11.3 | 21.6 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 109 compare with the other tracts in Whatcom County?
Among Whatcom County's tracts with a reliable estimate, Census Tract 109 ranks as shown below (1 = highest).
| Measure | In Whatcom County |
|---|---|
| Population | 54th of 54 |
| Residents per square mile | 50th of 54 |
| Median household income | 32nd of 54 |
| Per capita income | 13th of 54 |
| Median home value | 27th of 54 |
| Poverty rate | 34th of 39 |
| Bachelor's degree or higher | 5th of 54 |
| Median age | 1st of 54 |
| Owner-occupied share | 10th of 54 |
The tracts next to it on Whatcom County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 9400.01 | 29th | $85,156±$8,103 · within the margin of this tract |
| Tract 104.11 | 30th | $85,118±$26,539 · within the margin of this tract |
| Tract 104.09 | 31st | $83,293±$11,265 · within the margin of this tract |
| Tract 109 | 32nd | $83,000±$23,450 |
| Tract 102.01 | 33rd | $80,357±$28,786 · within the margin of this tract |
| Tract 104.06 | 34th | $79,728±$15,384 · within the margin of this tract |
| Tract 110 | 35th | $78,125±$13,206 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 109?
2 of the 17 figures for Census Tract 109 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections