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ZIP Code 99111
Colfax, WA, Whitman County
Population
4,038
Land area
307sq mi
People per sq mi
13
City
Colfax
ZIP 99111 and nearby ZIP codes
ZIP 99111 at a glance
- ZIP 99111 (Colfax) is 89% less dense than Washington as a whole.
- Households here earn a median of $73,393 a year, 25% less than the Washington figure of $98,141.
- A typical owner-occupied home is valued at $295,800 (48% below Washington) and median rent is $953 a month.
Local data for ZIP 99111
Counts from official public data
Housing and community stats
ZIP 99111, American Community Survey 2020-2024
Median household income
$73,393
Poverty rate
10.1%
Median home value
$295,800
Prices +12.3% in a year
Median rent
$953/mo
Homeownership
72.9%
Bachelor's or higher
30.5%
Median age
41.8
Average commute
17.8 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
134
ZIP Business Patterns 2023
Employees
1,348
$83M annual payroll
PPP loans
$9.6M
120 loans
Campaign donations
$9,209
6% D, 42% R, 2026 cycle
Environment and hazard risk
ZIP 99111, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: landslide
Storm events since 1996
339
Countywide, mostly heavy snow
Flood insurance policies
41
0.3% of homes, county
July high / Jan low
84° / 26°F
20.4 inches of rain a year
Health statistics
Share of adults in ZIP 99111, CDC PLACES estimates
Obesity
30.7%
U.S. 33.3% -2.6 pts
Diabetes
10.7%
U.S. 12.1% -1.4 pts
Smoking
11.4%
U.S. 12.8% -1.4 pts
Uninsured (18-64)
6.7%
U.S. 11.1% -4.4 pts
Frequently asked questions
- What city is ZIP code 99111?
- ZIP code 99111 is in Colfax, WA (Whitman County).
- What county is ZIP code 99111 in?
- ZIP code 99111 is mostly in Whitman County, Washington.
- How many people live in ZIP code 99111?
- About 4,038 people live in the 99111 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.