What city is ZIP code 99021?

ZIP code 99021 is in Green Bluff, WA (Spokane County).

What county is ZIP code 99021 in?

ZIP code 99021 is mostly in Spokane County, Washington.

How many people live in ZIP code 99021?

About 8,942 people live in the 99021 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 99021

Green Bluff, WA, Spokane County

Population

8,942

Land area

80.4sq mi

People per sq mi

111

City

Green Bluff

ZIP 99021 and nearby ZIP codes

Full map

ZIP 99021 at a glance

Households here earn a median of $85,489 a year, 13% less than the Washington figure of $98,141.
A typical owner-occupied home is valued at $465,400 (18% below Washington) and median rent is $1,415 a month.

Local data for ZIP 99021

Counts from official public data

Housing and community stats

ZIP 99021, American Community Survey 2020-2024

Full profile

Median household income

$85,489

Poverty rate

6.5%

Median home value

$465,400

Prices +5.8% in a year

Median rent

$1,415/mo

Homeownership

93.8%

Bachelor's or higher

31.7%

Median age

43.5

Average commute

27.3 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

166

ZIP Business Patterns 2023

Employees

1,356

$47.9M annual payroll

PPP loans

$7.1M

145 loans

Campaign donations

$58.4K

17% D, 47% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 99021, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: cold wave

Storm events since 1996

1,470

Countywide, mostly heavy snow

Flood insurance policies

244

0.1% of homes, county

July high / Jan low

87° / 26°F

17.4 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 99021, CDC PLACES estimates

All 40 measures

Obesity

33.7%

U.S. 33.3% about the same

Diabetes

10.4%

U.S. 12.1% -1.7 pts

Smoking

10.8%

U.S. 12.8% -2.0 pts

Uninsured (18-64)

5.7%

U.S. 11.1% -5.4 pts

Frequently asked questions

What city is ZIP code 99021?: ZIP code 99021 is in Green Bluff, WA (Spokane County).
What county is ZIP code 99021 in?: ZIP code 99021 is mostly in Spokane County, Washington.
How many people live in ZIP code 99021?: About 8,942 people live in the 99021 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.