PlainZIP

Colfax, WA · standard

ZIP Code 99111

Whitman County, Washington — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

4,047
5/sq mi
$73,393
Median income
$295,800
Median home value
30.5%
Bachelor's or higher

The verdict

Colfax pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 48%
household income, US ZIPs
Top 34%
home value, US ZIPs
5
people per sq mi
73%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99111 against every reporting US ZIP.

ZIP code 99111 is classified by USPS as a standard delivery area and covers roughly 749.4 square miles in Colfax, Whitman County, Washington. The area is home to 4,047 residents, producing a population density of 5 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 99111 against Washington and the nation.

On the economic side, the median household income for ZIP 99111 sits at $73,393 (19% below the Washington average), while per-capita income is $37,809. The poverty rate stands at 10.1% and the unemployment rate at 2.7%. On housing, the median home value is $295,800 (42% below the state average) with median rent at $953 per month, and 72.9% of occupied units are owner-occupied, a direct signal of whether 99111 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 30.5% of adults hold a bachelor's degree or higher, the median age is 41.8, and the average commute is 18 minutes. Use the benchmarks above to see where 99111 sits relative to Washington and the national baseline rather than viewing the numbers in isolation. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 99111

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 99111.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 99111, Colfax, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

4,047

Population

749.4

Area (sq mi)

5

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 99111?

41.8

Median Age

47.5%

Male

52.5%

Female

1.9%

Foreign-Born

White 85.5%
African American 1.7%
Asian 0.8%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 9.8%
Hispanic or Latino 10.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$73,393

Median Household Income

-19% vs state

$37,809

Per Capita Income

10.1%

Poverty Rate

2.7%

Unemployment Rate

17.8 min

Mean Commute Time

How ZIP 99111 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$73,393 Top 48% higher than 52% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 52.5%
Bachelor's Degree or Higher 30.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,932

Total Housing Units

1,714

Occupied Units

218

Vacant Units

2.32

Avg Household Size

Occupancy Type

Owner 72.9%
Renter 27.1%

$295,800

Median Home Value

-42% vs state

$953

Median Rent

1955

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-6.5%

YoY Change (2024)

254

HPI Index (2000 = 100)

+154%

Total Change Since 2000

Home values in ZIP 99111 have decreased 6.5% over the past year (2024). Since 2000, this ZIP has seen +154% cumulative appreciation.

Year Annual Change HPI Index
2020 +13.7% 193
2021 +14.6% 221
2022 +11.8% 248
2023 +9.9% 272
2024 -6.5% 254

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 134 business establishments in ZIP 99111, employing approximately 1,348 people with a combined annual payroll of $82,995,000.

134

Businesses

1,348

Employees

$83.0M

Annual Payroll

13

Industry Sectors

Industry Establishments % of Total
Construction 21 15.7%
Retail trade 17 12.7%
Other services (except public administration) 15 11.2%
Health care and social assistance 14 10.4%
Wholesale trade 12 9.0%
Finance and insurance 10 7.5%
Accommodation and food services 10 7.5%
Transportation and warehousing 7 5.2%
Professional, scientific, and technical services 7 5.2%
Real estate and rental and leasing 5 3.7%
Agriculture, forestry, fishing and hunting 4 3.0%
Administrative and support and waste management and remediation services 4 3.0%
Manufacturing 3 2.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Whitman County

99163 standard
Pullman, WA
Pop: 31,404
99161 standard
Palouse, WA
Pop: 1,400
99170 standard
Rosalia, WA
Pop: 1,072
99171 standard
Saint John, WA
Pop: 959
99033 standard
Tekoa, WA
Pop: 895
99130 standard
Garfield, WA
Pop: 828

Related Areas

Whitman County Colfax, WA Washington

Frequently Asked Questions

What county is ZIP code 99111 in? ▼
ZIP code 99111 (Colfax) is located in Whitman County, Washington. Whitman County contains multiple ZIP codes, see the full list at /counties/whitman-wa.
What is the population of ZIP code 99111? ▼
ZIP code 99111 in Colfax, WA has a population of 4,047 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99111? ▼
The median household income in ZIP 99111 is $73,393, which is 4% below the national average of $76,288.
What is the average home value in ZIP 99111? ▼
The median home value in ZIP 99111 is $295,800, which is 6% above the national average of $278,155.
What is the demographic makeup of ZIP 99111? ▼
The largest racial group in ZIP 99111 is White at 85.5%. Hispanic or Latino residents make up 10.7% of the population.
How many businesses are in ZIP code 99111? ▼
ZIP code 99111 has 134 business establishments employing approximately 1,348 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99111? ▼
The top industries by establishment count in ZIP 99111 are: Construction (21), Retail trade (17), Other services (except public administration) (15). There are 13 industry sectors represented in total.
How have home values changed in ZIP code 99111? ▼
According to the FHFA House Price Index, home values in ZIP 99111 decreased by 6.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 154%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 99111? ▼
In ZIP code 99111, 52.5% of residents aged 25+ have a high school diploma or higher, and 30.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 99111? ▼
The mean commute time for workers in ZIP code 99111 is 17.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 99111? ▼
In ZIP code 99111, approximately 72.9% of occupied housing units are owner-occupied and 27.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99111? ▼
The poverty rate in ZIP code 99111 is 10.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Colfax, WA

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

Read our methodology to see how this data is sourced, computed, and verified.