Postal Codes

99324 ZIP Code

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ZIP code 99324 covers College Place, Washington, with a population of about 10,171 and a median household income of $64,485.

Population
10,1713,671 per square mile
Median age
31.96.8 points below the US average
Median household income
$64,48532% below the Washington median
Poverty rate
10%2.4 points below the US average
Typical home value
$412,229up 18.1% in five years
Median rent
$1,12133% below the Washington median
Degree or higher
36.8%1.8 points above the US average
Homeownership
66.1%1.1 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
116

Where 99324 is

College Place, Washington — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population10,171
Median age31.9
Family households63.7%
Born outside the US9.4%
Speaks a language other than English at home16.1%
White (non-Hispanic)71.8%
Black (non-Hispanic)0.7%
Asian (non-Hispanic)2.8%
Hispanic or Latino19.7%
Veterans9.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$64,485
Income per person$32,729
Poverty rate10%
Households on SNAP or cash assistance10.5%

Household income distribution

Under $10k3.0%
$10–15k4.2%
$15–20k4.1%
$20–25k3.6%
$25–30k5.6%
$30–35k7.1%
$35–40k2.4%
$40–45k3.0%
$45–50k2.9%
$50–60k12.6%
$60–75k8.4%
$75–100k10.2%
$100–125k10.2%
$125–150k6.2%
$150–200k7.9%
$200k or more8.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed4,340
Mean adjusted gross income$65,140
Returns declaring $200,000 or more3.5%
Returns, under $25k27.9%
Returns, $25k–$50k25.1%
Returns, $50k–$75k16.6%
Returns, $75k–$100k11.5%
Returns, $100k–$200k15.4%
Returns, $200k or more3.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$338,600
Median gross rent$1,121
Rent as a share of household income32.8%
Owner-occupied66.1%
Vacant homes7.1%
Median year built1982

What the homes are

Detached house60%
Attached house4.2%
2 to 4 units13.4%
5 to 19 units10.2%
20 or more units2.7%
Mobile home9.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$412,229as of 2026-07
Typical home value, 1 yearup 0.1%
Typical home value, 5 yearsup 18.1%
Typical home value, 10 yearsup 97.9%
Typical asking rent$1,353as of 2026-07
Typical home value since 2000
200020132026$412,229$124,193

$124,193 in 2000 to $412,229 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.4%
Bachelor's degree or higher36.8%
High school diploma or higher89.3%
Works from home11.4%
Drives to work alone64.7%
Takes public transport1.4%
Commutes 45 minutes or more4.4%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity32.5% 0.9 pts below the national average of 33.4%
Diagnosed diabetes9.6% 2.4 pts below the national average of 12%
Currently smokes10% 3.2 pts below the national average of 13.2%
High blood pressure29.5% 4.6 pts below the national average of 34.1%
Fair or poor general health18.3% 2 pts below the national average of 20.3%
No health insurance (18–64)10% 1.3 pts below the national average of 11.3%
Depression25.8% 3.9 pts above the national average of 21.9%
No leisure-time physical activity18.5% 6.9 pts below the national average of 25.4%
Arthritis24.7% same as the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication71.8% 2.9 pts below the national average of 74.7%
Cancer (non-skin)8.4% 0.7 pts above the national average of 7.7%
Current asthma11.4% 1 pts above the national average of 10.4%
Coronary heart disease6.1% same as the national average of 6.2%
Routine check-up in past year69.8% 6.9 pts below the national average of 76.7%
Cholesterol screening79.8% 6.1 pts below the national average of 85.9%
Cognitive disability15.7% 0.9 pts above the national average of 14.8%
Colorectal screening68.2% 3.9 pts above the national average of 64.3%
COPD5.7% 0.9 pts below the national average of 6.6%
Visited a dentist64.3% 3 pts above the national average of 61.3%
Any disability31.2% 0.5 pts above the national average of 30.7%
Hearing disability7.5% 0.8 pts above the national average of 6.7%
High cholesterol33.4% 2.8 pts below the national average of 36.2%
Independent living disability8.2% same as the national average of 8.4%
Mammography use73.3% 2.6 pts below the national average of 75.9%
Poor mental health (14+ days)17.5% 0.7 pts above the national average of 16.8%
Mobility disability12.1% 1.9 pts below the national average of 14%
Poor physical health (14+ days)13.7% same as the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Sleeps under 7 hours28.3% 8.1 pts below the national average of 36.4%
Stroke3.2% same as the national average of 3.4%
All natural teeth lost11.1% 1.9 pts below the national average of 13%
Vision disability4.8% 0.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments116
People employed2,522
Annual payroll$71,585,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 39.1% of US census tracts
FEMA ratingRelatively Low
Expected annual loss42.8 out of 100
Community resilience41.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Ice storm94.9Relatively High at its worst in this ZIP code
Winter weather83.1Relatively High at its worst in this ZIP code
Earthquake82.6Relatively Moderate at its worst in this ZIP code
Heat wave77.4Relatively High at its worst in this ZIP code
Drought70Very Low at its worst in this ZIP code
Wildfire68.3Relatively Low at its worst in this ZIP code
Strong wind55.7Relatively Moderate at its worst in this ZIP code
Cold wave52.5Relatively Moderate at its worst in this ZIP code
River flooding43.9Relatively Moderate at its worst in this ZIP code
Hail36.4Relatively Low at its worst in this ZIP code
Lightning33.5Relatively Low at its worst in this ZIP code
Landslide25.3Very Low at its worst in this ZIP code
Tornado11.9Very Low at its worst in this ZIP code
Compared with Washington and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPWashingtonUnited States
Median household income$64,485$94,952$78,538
Income per person$32,729$51,493$43,289
Poverty rate10%9.9%12.4%
Median home value$338,600$519,800$303,400
Median gross rent$1,121$1,682$1,348
Homeownership66.1%63.9%65%
Bachelor's degree or higher36.8%38.8%35%
Unemployment rate4.4%5%5.2%
Works from home11.4%17.7%13.5%
Born outside the US9.4%15.1%13.9%
Median age31.938.238.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationWHITMAN MISSION, WA US4.1 km away
Rain in a year15 in

Average high and low by month

January42.2°F / 27.4°F1.68 in rain
February47.6°F / 28.3°F1.38 in rain
March57.1°F / 32.3°F1.7 in rain
April64.6°F / 36.8°F1.53 in rain
May73.1°F / 43.8°F1.8 in rain
June79.9°F / 49.4°F1.14 in rain
July90.4°F / 53.6°F0.38 in rain
August89.8°F / 51.6°F0.4 in rain
September80.2°F / 43.7°F0.68 in rain
October65.5°F / 35.6°F1.3 in rain
November50.4°F / 30.8°F1.67 in rain
December41.2°F / 26.9°F1.73 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket68% of this ZIP code's area
Far from a supermarket100% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

College Place School District96.3% of this ZIP code's land area
Walla Walla Public Schools3.7% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability72more vulnerable than 72% of US census tracts
Socioeconomic status57more vulnerable than 57% of US census tracts
Household characteristics88more vulnerable than 88% of US census tracts
Racial and ethnic minority status41more vulnerable than 41% of US census tracts
Housing type and transport68more vulnerable than 68% of US census tracts
Walkability11.1 out of 20Above average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

99362 Walla Walla, WA6.2 km away
97862 Milton Freewater, OR11 km away
99360 Touchet, WA20.2 km away
99329 Dixie, WA22.3 km away
97813 Athena, OR25.2 km away
97886 Weston, OR26.8 km away
97835 Helix, OR31.4 km away
99361 Waitsburg, WA32 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Walla Walla County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area2.77 sq mi
Population density3,671 people per sq mi
Latitude, longitude46.0471, -118.4093

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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