PlainZIP

Spangle, WA · standard

ZIP Code 99031

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

1,137
6/sq mi
$98,182
Median income
$423,500
Median home value
26.3%
Bachelor's or higher

The verdict

Spangle pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 20%
household income, US ZIPs
Top 19%
home value, US ZIPs
6
people per sq mi
92%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99031 against every reporting US ZIP.

ZIP code 99031 is a sparsely populated ZIP (a standard USPS delivery area) in Spangle, Spokane County, Washington, home to just 1,137 residents across 183.4 square miles, a density of 6 people per square mile, in the Los Angeles time zone.

ZIP 99031 lands in the middle-income range, with a median household income of $98,182 (8% above the Washington average), while per-capita income is $40,978. The poverty rate stands at 21.3% and the unemployment rate at 7.2%. Housing costs here run $423,500 for a typical home value (17% below the state average), with rent averaging $1,183 a month; 91.8% of homes are owner-occupied.

Educational attainment sits below the national norm: 26.3% of adults hold a bachelor's degree or higher, the median age is 47.1, and the average commute is -. A geography-based comparison follows: 3 ZIP codes within about 10 miles of 99031, plus 6 more within Spokane County, give a clearer read than the national average alone.

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 →

Top industries in ZIP 99031

Top 5 sectors by establishment count in Spangle, WA

Which industries have the most business establishments in ZIP 99031.

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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 99031, Spangle, 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

1,137

Population

183.4

Area (sq mi)

6

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 99031?

47.1

Median Age

55.5%

Male

44.5%

Female

3.9%

Foreign-Born

White 83.9%
African American 0.0%
Asian 1.5%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 13.0%
Hispanic or Latino 6.1%

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?

$98,182

Median Household Income

+8% vs state

$40,978

Per Capita Income

21.3%

Poverty Rate

7.2%

Unemployment Rate

How ZIP 99031 ranks nationally

Spangle, WA household income vs. every US ZIP code

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

$98,182 Top 20% higher than 80% 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%). This entry sits in this band. $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 56.7%
Bachelor's Degree or Higher 26.3%

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

What does housing look like?

450

Total Housing Units

440

Occupied Units

10

Vacant Units

2.48

Avg Household Size

Occupancy Type

Owner 91.8%
Renter 8.2%

$423,500

Median Home Value

-17% vs state

$1,183

Median Rent

1978

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 31 business establishments in ZIP 99031, employing approximately 184 people with a combined annual payroll of $9,118,000.

31

Businesses

184

Employees

$9.1M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Construction 9 29.0%
Accommodation and food services 4 12.9%
Manufacturing 3 9.7%
Wholesale trade 3 9.7%
Real estate and rental and leasing 3 9.7%

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 99031 vs 99039 →

ZIP 99031 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 99031 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 99031 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 99031 ranks #2 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
99039 Waverly, WA 87 7.1 mi
99036 Valleyford, WA 1,448 8.1 mi
99020 Marshall, WA 82 11.5 mi

More ZIP Codes in Spokane County

99208 standard
Spokane, WA
Pop: 49,193
99205 standard
Spokane, WA
Pop: 42,137
99206 standard
Spokane, WA
Pop: 34,802
99207 standard
Spokane, WA
Pop: 30,854
99223 standard
Spokane, WA
Pop: 29,273
99216 standard
Spokane, WA
Pop: 24,362

Related Areas

Spokane County Spangle, WA Washington

Frequently Asked Questions

What county is ZIP code 99031 in? ▼
ZIP code 99031 (Spangle) is located in Spokane County, Washington. Spokane County contains multiple ZIP codes, see the full list at /counties/spokane-wa.
What is the population of ZIP code 99031? ▼
ZIP code 99031 in Spangle, WA has a population of 1,137 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99031? ▼
The median household income in ZIP 99031 is $98,182, which is 29% above the national average of $76,288.
What is the average home value in ZIP 99031? ▼
The median home value in ZIP 99031 is $423,500, which is 52% above the national average of $278,155.
What is the demographic makeup of ZIP 99031? ▼
The largest racial group in ZIP 99031 is White at 83.9%. Hispanic or Latino residents make up 6.1% of the population.
How many businesses are in ZIP code 99031? ▼
ZIP code 99031 has 31 business establishments employing approximately 184 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99031? ▼
The top industries by establishment count in ZIP 99031 are: Construction (9), Accommodation and food services (4), Manufacturing (3). There are 5 industry sectors represented in total.
What is the education level in ZIP code 99031? ▼
In ZIP code 99031, 56.7% of residents aged 25+ have a high school diploma or higher, and 26.3% 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 99031? ▼
In ZIP code 99031, approximately 91.8% of occupied housing units are owner-occupied and 8.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99031? ▼
The poverty rate in ZIP code 99031 is 21.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

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