99031 ZIP Code, Spangle, WA

99031 is a ZIP code in Spangle, Washington in Spokane County. It covers 76 square miles of land. The closest ZIP codes are 99012, 99039 and 99036. 1,251 people live here in 440 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (92%). Median household income is $98,182, close to the Washington median of $98,141; the median age is 47.1, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents1,251
Households440
Median household income$98,182
Income per person$40,978
Median age47.1
Homeowners91.8%
Median home value$423,500
Median rent$1,183
Bachelor's degree or higher26.3%
Average commute (minutes)25.7
Households with kids under 1824.5%
Moved in the past year18.5%
Below the poverty line21.3%
Broadband internet89.3%
Speak a non-English language at home5.0%

Household income

% of householdsValue
<$10K1.6%
$10–15K2.3%
$15–25K8.6%
$25–35K0.7%
$35–50K7.7%
$50–75K13.6%
$75–100K17.3%
$100–150K31.6%
$150–200K7.3%
$200K+9.3%

Age

% of all residentsValue
<106.9%
10–197.7%
20–242.9%
25–3413.1%
35–4418.5%
45–5417.7%
55–6412.7%
65–7410.0%
75+10.4%

Tenure

% of housing unitsValue
Owned, with mortgage54.7%
Owned outright35.1%
Rented8.0%
Vacant2.2%

Type of building

% of housing unitsValue
Detached house78.0%
Townhome0.0%
2–4 units0.0%
5–19 units0.0%
20+ units0.0%
Mobile / other22.0%

Businesses in 99031

31 business establishments with 184 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 99031 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 99031

Where it ranks

Mail every home in 99031

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 99031, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 99031 in?
99031 is a Spangle, WA mailing address. None of its land lies inside a Census-defined city or community.
What county is 99031 in?
99031 is in Spokane County.
What is the population of 99031?
About 1,251 people (±218), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,441.
What is the median household income in 99031?
$98,182 (±$14,536), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 99031?
EDDM2GO's stored route library does not include 99031 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 99031?
The closest, measured center to center: 99012 (6.9 mi, Fairfield), 99039 (7 mi, Waverly), 99036 (7.8 mi), 99030 (11.1 mi, Rockford), 99170 (11.6 mi, Rosalia) and 99018 (11.8 mi, Latah).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.