PlainZIP

Thornton, WA · standard

ZIP Code 99176

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

145
2/sq mi
$128,000
Median income
$283,300
Median home value
17.7%
Bachelor's or higher

The verdict

Thornton pairs a top-decile household income with above-median home values, in a rural, homeowner-dominated area.

Top 7%
household income, US ZIPs
Top 36%
home value, US ZIPs
2
people per sq mi
81%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99176 against every reporting US ZIP.

ZIP code 99176 is a sparsely populated ZIP (a standard USPS delivery area) in Thornton, Whitman County, Washington, home to just 145 residents across 96.7 square miles, a density of 2 people per square mile, in the Los Angeles time zone.

ZIP 99176 skews affluent, with a median household income of $128,000 (41% above the Washington average), while per-capita income is $55,890. The poverty rate stands at 0.0% and the unemployment rate at 0.0%. Housing costs here run $283,300 for a typical home value (45% below the state average), with rent averaging $781 a month; 80.6% of homes are owner-occupied.

Educational attainment sits below the national norm: 17.7% of adults hold a bachelor's degree or higher, the median age is 58, and the average commute is -. To put 99176 in local context, 2 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Whitman County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 99176, Thornton, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

145

Population

96.7

Area (sq mi)

2

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 99176?

58.0

Median Age

50.9%

Male

49.1%

Female

0.0%

Foreign-Born

White 95.1%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 3.7%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.2%
Hispanic or Latino 0.0%

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?

$128,000

Median Household Income

+41% vs state

$55,890

Per Capita Income

0.0%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 99176 ranks nationally

Thornton, WA household income vs. every US ZIP code

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

$128,000 Top 7% higher than 93% 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%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $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 50.8%
Bachelor's Degree or Higher 17.7%

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

What does housing look like?

90

Total Housing Units

72

Occupied Units

18

Vacant Units

2.26

Avg Household Size

Occupancy Type

Owner 80.6%
Renter 19.4%

$283,300

Median Home Value

-45% vs state

$781

Median Rent

1938

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 3 business establishments in ZIP 99176, employing approximately 15 people with a combined annual payroll of $1,043,000.

3

Businesses

15

Employees

$1.0M

Annual Payroll

0

Industry Sectors

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

Nearby ZIP Codes

Want a side-by-side? Compare 99176 vs 99174 →

ZIP 99176 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 99176 ranks #2 by population - useful context the national average alone can't give.

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

ZIP 99176 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 99176 ranks the highest of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
99174 Steptoe, WA 44 5.7 mi
99149 Malden, WA 208 9.6 mi

More ZIP Codes in Whitman County

99163 standard
Pullman, WA
Pop: 31,404
99111 standard
Colfax, WA
Pop: 4,047
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

Related Areas

Whitman County Thornton, WA Washington

Frequently Asked Questions

What county is ZIP code 99176 in? ▼
ZIP code 99176 (Thornton) 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 99176? ▼
ZIP code 99176 in Thornton, WA has a population of 145 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99176? ▼
The median household income in ZIP 99176 is $128,000, which is 68% above the national average of $76,288.
What is the average home value in ZIP 99176? ▼
The median home value in ZIP 99176 is $283,300, which is 2% above the national average of $278,155.
What is the demographic makeup of ZIP 99176? ▼
The largest racial group in ZIP 99176 is White at 95.1%.
How many businesses are in ZIP code 99176? ▼
ZIP code 99176 has 3 business establishments employing approximately 15 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 99176? ▼
In ZIP code 99176, 50.8% of residents aged 25+ have a high school diploma or higher, and 17.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 99176? ▼
In ZIP code 99176, approximately 80.6% of occupied housing units are owner-occupied and 19.4% are renter-occupied, based on Census ACS 2023 data.

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