ZIP Code 99111

ZIP Code Tabulation Area in Whitman County, Washington.

Population: 4,049
Median household income: $66,333
Median home value: $264,300

ZIP Code 99111 is a ZIP Code Tabulation Area in Whitman County, Washington, home to about 4,049 residents. At $66,333, its median household income sits above Whitman County's $52,893.

From 2019 to 2023, ZIP Code 99111's population declined 4.4% from 4,234 to 4,049, while its median gross rent rose 36.3% from $721 to $983.

White (non-Hispanic) residents are the largest group, 82.4% of the population. 79.9% of workers drive to work alone.

Demographics

ACS 2019–2023

Population: 4,049
Median age: 41.8 yrs
Median household income: $66,333
Median home value: $264,300
Median gross rent: $983
Housing units: 1,920
Homeownership rate: 72.9%
Bachelor's degree or higher: 29.6%
Unemployment rate: 3.2%

Trends

ACS 5-year · 2019–2023

Population

4,2344,049

Median household income

$52,246$66,333

Median home value

$172,500$264,300

Median gross rent

$721$983

Year	Population	Median household income	Median home value	Median gross rent
2019	4,234	$52,246	$172,500	$721
2020	4,202	$55,696	$173,000	$750
2021	4,057	$58,949	$183,600	$820
2022	4,012	$61,223	$237,000	$841
2023	4,049	$66,333	$264,300	$983

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.9%

5 to 1717.2%

18 to 243.9%

25 to 3410.4%

35 to 4416.0%

45 to 549.6%

55 to 6417.5%

65 to 749.3%

75 and over11.3%

	Count	Share
Under 5	197	4.9%
5 to 17	696	17.2%
18 to 24	157	3.9%
25 to 34	420	10.4%
35 to 44	646	16.0%
45 to 54	389	9.6%
55 to 64	708	17.5%
65 to 74	377	9.3%
75 and over	459	11.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	3,336	82.4%
Black or African American	50	1.2%
American Indian & Alaska Native	27	0.7%
Asian	32	0.8%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	90	2.2%
Two or more races	188	4.6%
Hispanic or Latino (any race)	326	8.1%

Educational attainment (age 25+)

No high school diploma7.4%

High school graduate22.2%

Some college or associate's40.7%

Bachelor's degree19.2%

Graduate or professional degree10.4%

	Count	Share
No high school diploma	223	7.4%
High school graduate	666	22.2%
Some college or associate's	1,221	40.7%
Bachelor's degree	576	19.2%
Graduate or professional degree	313	10.4%

Commute to work

Mean travel time to work: 20 min

Drove alone79.9%

Carpooled8.9%

Public transit0.0%

Walked1.5%

Bicycle0.6%

Worked from home6.9%

Other means2.1%

How workers get to work

	Count	Share
Drove alone	1,416	79.9%
Carpooled	158	8.9%
Public transit	0	0.0%
Walked	27	1.5%
Bicycle	11	0.6%
Worked from home	123	6.9%
Other means	38	2.1%

Travel time

	Count	Share
Under 15 min	663	40.2%
15 to 29 min	553	33.5%
30 to 44 min	292	17.7%
45 to 59 min	66	4.0%
60+ min	76	4.6%

Households

Average household size: 2.34
Poverty rate: 9.0% (357 of 3,984)

	Count	Share
Family households	1,052	62.0%
Nonfamily households	645	38.0%

Housing

Median year structure built: 1950

Occupancy

	Count	Share
Occupied	1,697	88.4%
Vacant	223	11.6%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,237	72.9%
Renter-occupied	460	27.1%

1-unit, detached68.4%

1-unit, attached0.6%

2 to 4 units7.5%

5 to 19 units7.0%

20 or more units6.4%

Mobile home & other10.2%

Units in structure

	Count	Share
1-unit, detached	1,313	68.4%
1-unit, attached	12	0.6%
2 to 4 units	144	7.5%
5 to 19 units	134	7.0%
20 or more units	122	6.4%
Mobile home & other	195	10.2%

ZIP Code 99111

Demographics

Trends

Age distribution

Race & ethnicity

Educational attainment (age 25+)

Commute to work

Households

Housing

Geography

Counties this ZIP covers

Compare with nearby ZIP codes

National ZIP rankings

Nearby ZIP codes