99179 ZIP Code — Uniontown, WA

Whitman County, Washington

ZIP code 99179 is located in Uniontown, Washington, within Whitman County. It covers approximately 65.27 square miles and serves a population of 568 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99179

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $307,600. Owner-occupancy sits near the national average at 69%.

The gap between median ($78,906) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.

Educational attainment is near the national average, with 44% of residents holding a bachelor's degree or higher.

568

population

65.27

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99179 ZIP code map

Cities in ZIP code 99179

Below are the cities the US Postal Service accepts for ZIP code 99179. Using any city not on this list may result in mail delivery delays.

City	Status
Uniontown	Preferred

Nearby ZIP codes

99113 Colton (7 mi) 83832 Genesee (12.1 mi) 99164 Pullman (15.5 mi) 99163 Pullman (16.5 mi) 83844 Moscow (17 mi) 83843 Moscow (17.8 mi) 83540 Lapwai (18 mi) 83535 Juliaetta (18.9 mi) 99403 Clarkston (19.7 mi)

Demographics updated 05/2026

Population
Total population	568
Population density	9 / sq mi
State FIPS	53
County FIPS	075

Geography
Land area	65.27 sq mi
Water area	0.67 sq mi
Latitude	46.5024
Longitude	-117.1273
Timezone	Pacific (PT)
Area code	509

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.1%	55.9%	31.7%
$50k – $100k	32.4%	24.5%	30.6%
$100k – $200k	23.5%	15.6%	27.1%
Over $200k	10.0%	4.0%	10.6%

Demographics & statistics

568

Population

People per sq mi

34.4

Median age

$78,906

Median household income

$46,052

Per capita income

$307,600

Median home value

$1,219

Median monthly rent

68.7%

Home ownership

5.1%

Poverty rate

0.0%

Unemployment

145

Housing units

43.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	223	39.3%
18 and over	345	60.7%
65 and over	52	9.2%
Median age	34.4 years

Race & ethnicity

White 89.2%

Two or more races 5.9%

Asian 3.7%

Hispanic or Latino 0.9%

Black or African American 0.3%

Group	Count	%
White	511	89.2%
Two or more races	34	5.9%
Asian	21	3.7%
Hispanic or Latino	5	0.9%
Black or African American	2	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.1%	55.9%	31.7%
$50k – $100k	32.4%	24.5%	30.6%
$100k – $200k	23.5%	15.6%	27.1%
Over $200k	10.0%	4.0%	10.6%

Under $10k 1.6%

$10k–$15k 3.8%

$15k–$25k 2.2%

$25k–$35k 11.0%

$35k–$50k 12.6%

$50k–$75k 13.7%

$75k–$100k 16.5%

$100k–$150k 24.7%

$150k–$200k 2.2%

$200k+ 11.5%

Range	% of households
Under $10k	1.6%
$10k–$15k	3.8%
$15k–$25k	2.2%
$25k–$35k	11.0%
$35k–$50k	12.6%
$50k–$75k	13.7%
$75k–$100k	16.5%
$100k–$150k	24.7%
$150k–$200k	2.2%
$200k+	11.5%
Median income	$78,906

Housing

Home values

Under $50k 10.4%

$50k–$100k 2.4%

$100k–$150k 11.2%

$150k–$200k 0.8%

$200k–$300k 23.2%

$300k–$500k 36.0%

$500k–$1M 16.0%

Housing overview

Metric	Value
Median home value	$307,600
Median rent / month	$1,219
Owner occupied	68.7%
Renter occupied	31.3%
Vacant	9.9%
Single-family detached	78.7%
Large apartment buildings	0.0%
Mobile homes	21.3%
Median rooms	5.8
Avg household size (owned)	3.22

Year built

Era	%
2020 or later	0.0%
2010–2019	20.8%
2000–2009	6.9%
1990–1999	5.9%
1980–1989	5.9%
1970–1979	16.3%
1960–1969	10.4%
1950–1959	0.0%
1940–1949	1.5%
1939 or earlier	32.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	7.4%
2 bedrooms	15.3%
3 bedrooms	45.0%
4 bedrooms	21.3%
5+ bedrooms	10.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	9.9%
2 vehicles	31.9%
3 or more	58.2%

Heating fuel

Fuel type	%
Utility gas	51.6%
Electricity	28.6%
Propane / LP gas	2.2%
Fuel oil	6.6%
Wood	10.4%
Solar	0.5%

Households & families

Household type	Count	%
Married-couple family	124	68.1%
Cohabiting couple	5	2.7%
Male householder, no spouse	43	23.6%
Female householder, no spouse	10	5.5%
Households with children under 18	93	51.1%
Households with seniors (65+)	27	14.8%
Average household size	3.12

Marital status

Status	Male	Female
Never married	14.6%	14.3%
Married	66.1%	76.8%
Separated	0.0%	0.0%
Widowed	10.4%	1.8%
Divorced	8.9%	7.1%

Education

Less than 9th grade 0.6%

Some HS, no diploma 3.2%

HS graduate 19.2%

Some college, no degree 22.7%

Associate's degree 10.5%

Bachelor's degree 25.7%

Graduate / professional 18.1%

Metric	%
HS diploma or higher	96.2%
Bachelor's or higher	43.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	6	3.4%
Kindergarten	35	19.9%
Elementary school	91	51.7%
High school	15	8.5%
College / grad school	29	16.5%

Employment

Industry of employment

Education & healthcare 31.6%

Manufacturing 16.5%

Agriculture & mining 9.5%

Finance & real estate 9.5%

Other services 8.2%

Information 6.9%

Professional & management 6.5%

Retail trade 4.3%

Public administration 3.0%

Arts, food & hospitality 2.6%

Wholesale trade 0.9%

Construction 0.4%

Occupation

Category	%
Management, business & arts	59.7%
Service	4.3%
Sales & office	15.6%
Natural resources & construction	11.7%
Production & transportation	8.7%

Employment type

Type	%
Private sector	66.2%
Government	28.1%
Self-employed	5.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.8%
Carpool	9.1%
Public transit	0.0%
Walk	0.4%
Work from home	5.6%
Other means	0.0%
Avg commute (minutes)	21.2

Poverty

All people 5.1%

Under 18 years 1.3%

18 and over 7.5%

Married-couple families 5.6%

Female-led households 0.0%

Income support

Source	% of households
Social Security	15.4%
Retirement income	4.4%
Supplemental Security	2.2%
Cash public assistance	0.0%
Food stamps / SNAP	3.8%

Health indicators

Condition	%
Obesity	30.9%
High blood pressure	31.2%
High cholesterol	33.5%
Diabetes	8.6%
Heart disease	6.6%
Stroke	3.0%
Asthma	10.8%
Arthritis	25.2%
Kidney disease	2.9%
Pulmonary disease	6.5%
Cancer	7.3%

Behavior / access	%
Smoking	14.7%
Binge drinking	17.7%
No physical activity	17.4%
Less than 7 hrs sleep	27.5%
Depression	26.5%
Fair or poor health	12.7%
Poor mental health	14.8%
Poor physical health	10.4%
No health insurance	8.9%
Visited doctor (checkup)	70.0%
Visited dentist	71.5%
Cholesterol screening	88.9%
Teeth loss	10.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	16	4.6%

Disability	%
Any disability	11.6%
Under 18	2.2%
18–64 years	16.0%
65 and over	26.9%

Health insurance coverage

Type	%
Private insurance	77.6%
Public insurance	22.5%
No insurance	4.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	489	86.1%
Spanish	4	0.8%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	4	0.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	558	98.2%
Born in same state	558	98.2%
Born in different state	311	54.8%
Foreign born	0	0.0%
Naturalized citizen	10	1.8%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	91	16%
French	75	13.2%
Arab	48	8.5%

Ancestry	Count	%
Polish	17	3%
English	11	1.9%
German	7	1.2%

Technology access

Metric	% of households
Computer access	32.0%
Internet access	98.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 99179

What city is ZIP code 99179 in?

ZIP code 99179 is primarily assigned to Uniontown, Washington.

What county is ZIP code 99179 in?

ZIP code 99179 falls within Whitman County, Washington.

Is ZIP code 99179 family-oriented?

39% of residents in ZIP code 99179 are under 18, reflecting a younger, family-oriented community.

What is the typical home value in ZIP code 99179?

The median home value in ZIP code 99179 is $307,600.

What is the population of ZIP code 99179?

ZIP code 99179 has an estimated population of 568 residents, with a density of 9 people per square mile.

What is the median household income in ZIP code 99179?

The median household income in ZIP code 99179 is $78,906, above the national median of ~$75,000.

What timezone is ZIP code 99179 in?

ZIP code 99179 observes the PST timezone.