99031 ZIP Code — Spangle, WA

Spokane County, Washington

ZIP code 99031 is located in Spangle, Washington, within Spokane County. It covers approximately 76.46 square miles and serves a population of 1,110 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99031

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 $331,300. Owner-occupancy is high at 83%, well above the national average.

Median household income is $88,393.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.

Overall, ZIP code 99031 reflects a community defined by a strong veteran community and high homeownership.

1,110

population

76.46

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99031 ZIP code map

Cities in ZIP code 99031

Below are the cities the US Postal Service accepts for ZIP code 99031. Using any city not on this list may result in mail delivery delays.

City	Status
Spangle	Preferred

Nearby ZIP codes

99036 Valleyford (7.2 mi) 99012 Fairfield (8 mi) 99223 Spokane (10.7 mi) 99030 Rockford (11.4 mi) 99023 Mica (12.1 mi) 99170 Rosalia (12.5 mi) 99018 Latah (12.7 mi) 99004 Cheney (13.5 mi) 99203 Spokane (13.5 mi) 99206 Spokane (14.6 mi) 99204 Spokane (15 mi) 99202 Spokane (15.3 mi)

Demographics updated 05/2026

Population
Total population	1,110
Population density	15 / sq mi
State FIPS	53
County FIPS	063

Geography
Land area	76.46 sq mi
Water area	0.08 sq mi
Latitude	47.4361
Longitude	-117.3537
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	31.4%	41.6%	31.7%
$50k – $100k	35.0%	32.2%	30.6%
$100k – $200k	27.2%	20.8%	27.1%
Over $200k	6.4%	5.5%	10.6%

Demographics & statistics

1,110

Population

People per sq mi

47.9

Median age

$88,393

Median household income

$41,076

Per capita income

$331,300

Median home value

$1,083

Median monthly rent

82.7%

Home ownership

11.0%

Poverty rate

5.3%

Unemployment

362

Housing units

24.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

102

35–44

124

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	133	12.0%
18 and over	977	88.0%
65 and over	182	16.4%
Median age	47.9 years

Race & ethnicity

White 88.1%

Two or more races 4.8%

Hispanic or Latino 3.9%

Other race 1.6%

Asian 1.6%

Group	Count	%
White	1,018	88.1%
Two or more races	55	4.8%
Hispanic or Latino	45	3.9%
Other race	19	1.6%
Asian	18	1.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	31.4%	41.6%	31.7%
$50k – $100k	35.0%	32.2%	30.6%
$100k – $200k	27.2%	20.8%	27.1%
Over $200k	6.4%	5.5%	10.6%

Under $10k 2.3%

$10k–$15k 4.8%

$15k–$25k 4.2%

$25k–$35k 9.9%

$35k–$50k 5.8%

$50k–$75k 16.4%

$75k–$100k 16.9%

$100k–$150k 19.9%

$150k–$200k 14.8%

$200k+ 5.1%

Range	% of households
Under $10k	2.3%
$10k–$15k	4.8%
$15k–$25k	4.2%
$25k–$35k	9.9%
$35k–$50k	5.8%
$50k–$75k	16.4%
$75k–$100k	16.9%
$100k–$150k	19.9%
$150k–$200k	14.8%
$200k+	5.1%
Median income	$88,393

Housing

Home values

Under $50k 5.0%

$50k–$100k 0.6%

$100k–$150k 3.9%

$150k–$200k 13.7%

$200k–$300k 19.6%

$300k–$500k 33.8%

$500k–$1M 21.8%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$331,300
Median rent / month	$1,083
Owner occupied	82.7%
Renter occupied	17.3%
Vacant	0.9%
Single-family detached	74.4%
Large apartment buildings	0.0%
Mobile homes	23.6%
Median rooms	6.8
Avg household size (owned)	2.53

Year built

Era	%
2020 or later	0.0%
2010–2019	5.7%
2000–2009	15.1%
1990–1999	18.1%
1980–1989	8.7%
1970–1979	14.4%
1960–1969	8.9%
1950–1959	5.0%
1940–1949	4.1%
1939 or earlier	19.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.5%
2 bedrooms	29.5%
3 bedrooms	42.6%
4 bedrooms	11.7%
5+ bedrooms	15.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.5%
1 vehicle	23.8%
2 vehicles	32.8%
3 or more	43.0%

Heating fuel

Fuel type	%
Utility gas	19.2%
Electricity	50.1%
Propane / LP gas	9.9%
Fuel oil	6.9%
Wood	9.2%

Households & families

Household type	Count	%
Married-couple family	250	57.7%
Cohabiting couple	25	5.8%
Male householder, no spouse	86	19.9%
Female householder, no spouse	72	16.6%
Households with children under 18	104	24.0%
Households with seniors (65+)	114	26.3%
Average household size	2.38

Marital status

Status	Male	Female
Never married	41.3%	14.7%
Married	46.5%	58.1%
Separated	0.0%	1.1%
Widowed	0.0%	7.9%
Divorced	12.3%	18.1%

Education

Less than 9th grade 0.0%

Some HS, no diploma 6.5%

HS graduate 24.3%

Some college, no degree 33.0%

Associate's degree 11.3%

Bachelor's degree 15.2%

Graduate / professional 9.6%

Metric	%
HS diploma or higher	93.5%
Bachelor's or higher	24.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	2.2%
Kindergarten	9	5.0%
Elementary school	61	33.7%
High school	60	33.1%
College / grad school	47	26.0%

Employment

Industry of employment

Education & healthcare 24.4%

Construction 18.8%

Professional & management 9.8%

Agriculture & mining 8.7%

Manufacturing 7.0%

Other services 6.6%

Transportation & utilities 5.3%

Retail trade 4.9%

Arts, food & hospitality 4.4%

Public administration 4.2%

Wholesale trade 2.9%

Finance & real estate 2.9%

Occupation

Category	%
Management, business & arts	36.7%
Service	8.7%
Sales & office	13.6%
Natural resources & construction	25.8%
Production & transportation	15.3%

Employment type

Type	%
Private sector	82.9%
Government	14.8%
Self-employed	1.2%
Unpaid family workers	1.2%

Commute

Method	%
Drive alone	70.4%
Carpool	16.9%
Public transit	0.0%
Walk	9.6%
Work from home	3.1%
Other means	0.0%
Avg commute (minutes)	27.7

Poverty

All people 11.0%

Under 18 years 1.5%

18 and over 12.3%

Married-couple families 6.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	29.8%
Retirement income	26.3%
Supplemental Security	6.2%
Cash public assistance	2.3%
Food stamps / SNAP	13.2%

Health indicators

Condition	%
Obesity	34.6%
High blood pressure	33.9%
High cholesterol	35.4%
Diabetes	10.5%
Heart disease	7.5%
Stroke	3.5%
Asthma	11.2%
Arthritis	31.7%
Kidney disease	3.3%
Pulmonary disease	7.9%
Cancer	8.0%

Behavior / access	%
Smoking	15.7%
Binge drinking	15.5%
No physical activity	19.9%
Less than 7 hrs sleep	31.3%
Depression	25.7%
Fair or poor health	15.4%
Poor mental health	15.1%
Poor physical health	12.3%
No health insurance	8.8%
Visited doctor (checkup)	72.5%
Visited dentist	67.6%
Cholesterol screening	89.9%
Teeth loss	11.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	121	12.4%

Disability	%
Any disability	17.7%
Under 18	0.0%
18–64 years	18.1%
65 and over	29.1%

Health insurance coverage

Type	%
Private insurance	68.1%
Public insurance	38.6%
No insurance	8.2%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,082	97.5%
Spanish	2	0.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	2	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,110	100.0%
Born in same state	1,091	98.3%
Born in different state	687	61.9%
Foreign born	19	1.7%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	145	13.1%
French	97	8.7%
Arab	73	6.6%
Dutch	47	4.2%

Ancestry	Count	%
English	39	3.5%
Polish	24	2.2%
German	12	1.1%
Norwegian	5	0.5%

Technology access

Metric	% of households
Computer access	39.0%
Internet access	95.4%

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

Frequently asked questions about ZIP code 99031

What city is ZIP code 99031 in?

ZIP code 99031 is primarily assigned to Spangle, Washington.

What county is ZIP code 99031 in?

ZIP code 99031 falls within Spokane County, Washington.

Is ZIP code 99031 mostly owner-occupied?

83% of occupied units in ZIP code 99031 are owner-occupied, well above the national average.

Does ZIP code 99031 have a large veteran population?

12% of civilians in ZIP code 99031 are veterans, above the national average of ~7%.

What is the typical home value in ZIP code 99031?

The median home value in ZIP code 99031 is $331,300.

What is the population of ZIP code 99031?

ZIP code 99031 has an estimated population of 1,110 residents, with a density of 15 people per square mile.

What timezone is ZIP code 99031 in?

ZIP code 99031 observes the PST timezone.