Fairfield ZIP Codes — Spokane County, WA

There is one unique ZIP code in Fairfield, Washington and it is 99012. Area code: 509.
1
ZIP codes
93.57
sq mi land
0.00
sq mi water
509
area code
Fairfield, WA ZIP code map

About Fairfield, WA

Fairfield is a small, charming community located in Spokane County in the eastern part of Washington State. Served by a single ZIP code — 99012 — this rural town embodies the quiet, agricultural character of the Palouse region. Residents and visitors alike appreciate Fairfield's small-town atmosphere, friendly community spirit, and its setting amid the rolling wheat fields of eastern Washington.

Location & geography

Fairfield sits in the heart of eastern Washington's Palouse country, roughly 25 miles south of Spokane and about 20 miles northwest of Rosalia. The city covers a land area of exactly 93.57 square miles and has no water area whatsoever, reflecting the dry, dryland-farming landscape of the surrounding region. The terrain is characterized by the gently rolling hills and fertile loess soils that make the Palouse one of the most productive wheat-growing regions in the world.

Community & economy

Fairfield is a tight-knit rural community where agriculture — particularly wheat and other grain farming — forms the backbone of the local economy and daily life. Small businesses, a community school district, and local churches anchor daily life for residents who value the slower pace and strong neighborly bonds that define small-town eastern Washington. The surrounding Palouse countryside also attracts those who enjoy outdoor recreation such as hiking, cycling, and wildlife watching in the open, scenic landscape.

Transportation

Fairfield is primarily accessed via State Route 27, which runs through the area connecting it northward toward Spokane and southward through the Palouse region. The nearest major airport is Spokane International Airport, located approximately 30 miles to the north, providing residents with access to regional and national air travel. Personal vehicles are the dominant mode of transportation in Fairfield, as public transit options are limited in this rural setting.

History

Fairfield was established in the late 19th century as settlers moved into the Palouse region attracted by its extraordinarily fertile soils and the promise of productive wheat farming. The arrival of railroad lines in eastern Washington during that era helped small agricultural towns like Fairfield grow as shipping and trade centers for surrounding farms. Over the decades, Fairfield has retained its agricultural identity, remaining a stable and close community deeply rooted in the farming traditions of the Palouse.

Did you know?

Despite its modest size, Fairfield sits at the edge of one of the most productive dryland wheat-farming regions on Earth, the Palouse, which produces a significant portion of the soft white wheat exported from the United States. The city's complete absence of any water area — 0.00 square miles — is a testament to the dry, inland character of this corner of eastern Washington, far removed from the rivers and lakes that define other parts of the state.

ZIP codes for Fairfield, WA (1)
ZIP code City County Map
99012 Fairfield Spokane View map

Demographics & statistics

1,111
Population
38.2
Median age
$64,659
Median household income
$25,948
Per capita income
$258,500
Median home value
$879
Median monthly rent
69.1%
Home ownership
9.0%
Poverty rate
11.0%
Unemployment
315
Housing units
27.2%
Bachelor's or higher

Age distribution

Male Female
10
Under 5
10
62
5–9
63
43
10–14
43
21
15–19
22
34
20–24
34
78
25–34
79
97
35–44
98
38
45–54
39
24
55–59
24
44
60–64
44
79
65–74
79
9
75–84
10
13
85+
14
← Male
Female →

Age summary

GroupCount%
Under 1826223.6%
18 and over84976.4%
65 and over20418.4%
Median age38.2 years

Race & ethnicity

White 94.5%
Two or more races 2.1%
American Indian / Alaska Native 2.1%
Hispanic or Latino 0.9%
Other race 0.4%
GroupCount%
White1,05994.5%
Two or more races242.1%
American Indian / Alaska Native232.1%
Hispanic or Latino100.9%
Other race50.4%

Household income

Under $10k 4.4%
$10k–$15k 4.1%
$15k–$25k 3.8%
$25k–$35k 4.7%
$35k–$50k 9.9%
$50k–$75k 31.5%
$75k–$100k 13.4%
$100k–$150k 20.1%
$150k–$200k 2.3%
$200k+ 5.8%
Range% of households
Under $10k4.4%
$10k–$15k4.1%
$15k–$25k3.8%
$25k–$35k4.7%
$35k–$50k9.9%
$50k–$75k31.5%
$75k–$100k13.4%
$100k–$150k20.1%
$150k–$200k2.3%
$200k+5.8%
Median income$64,659

Housing

Home values

Under $50k 1.3%
$50k–$100k 1.7%
$100k–$150k 13.9%
$150k–$200k 11.4%
$200k–$300k 41.4%
$300k–$500k 26.6%
$500k–$1M 3.8%

Housing overview

MetricValue
Median home value$258,500
Median rent / month$879
Owner occupied69.1%
Renter occupied30.9%
Vacant18.5%
Single-family detached78.1%
Large apartment buildings3.1%
Mobile homes15.4%
Median rooms7.1
Avg household size (owned)3.44

Year built

Era%
2020 or later0.0%
2010–20191.7%
2000–20097.6%
1990–19993.1%
1980–19891.2%
1970–19799.0%
1960–196915.0%
1950–19597.4%
1940–19496.4%
1939 or earlier48.7%

Bedrooms

Size% of units
No bedroom (studio)1.0%
1 bedroom2.4%
2 bedrooms18.5%
3 bedrooms38.2%
4 bedrooms33.5%
5+ bedrooms6.4%

Vehicles per household

Vehicles% of households
No vehicle1.2%
1 vehicle16.0%
2 vehicles28.9%
3 or more53.9%

Heating fuel

Fuel type%
Electricity63.6%
Propane / LP gas1.2%
Fuel oil16.9%
Wood10.8%

Households & families

Household typeCount%
Married-couple family21261.8%
Cohabiting couple72.0%
Male householder, no spouse7722.4%
Female householder, no spouse4713.7%
Households with children under 1811633.8%
Households with seniors (65+)10430.3%
Average household size3.05

Marital status

StatusMaleFemale
Never married28.3%30.6%
Married58.1%47.0%
Separated2.2%10.8%
Widowed1.7%5.9%
Divorced9.6%5.7%

Education

Less than 9th grade 5.1%
Some HS, no diploma 3.4%
HS graduate 32.5%
Some college, no degree 15.0%
Associate's degree 16.9%
Bachelor's degree 22.2%
Graduate / professional 4.9%
Metric%
HS diploma or higher91.5%
Bachelor's or higher27.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool31.3%
Kindergarten3716.3%
Elementary school12454.6%
High school4620.3%
College / grad school177.5%

Employment

Industry of employment

Education & healthcare 21.4%
Agriculture & mining 10.2%
Transportation & utilities 10.0%
Other services 10.0%
Retail trade 8.0%
Finance & real estate 6.6%
Arts, food & hospitality 6.6%
Professional & management 6.3%
Construction 6.1%
Wholesale trade 6.1%
Public administration 4.1%
Manufacturing 3.9%
Information 0.7%

Occupation

Category%
Management, business & arts30.4%
Service15.6%
Sales & office22.4%
Natural resources & construction16.8%
Production & transportation14.8%

Employment type

Type%
Private sector79.1%
Government18.0%
Self-employed2.9%
Unpaid family workers0.0%

Commute

Method%
Drive alone87.2%
Carpool1.9%
Public transit0.0%
Walk0.0%
Other means0.8%
Avg commute (minutes)35.6

Poverty

All people 9.0%
Under 18 years 13.7%
18 and over 7.4%
Married-couple families 4.2%
Female-led households 36.0%

Income support

Source% of households
Social Security30.0%
Retirement income15.7%
Supplemental Security13.1%
Cash public assistance9.6%
Food stamps / SNAP11.4%

Health indicators

Condition%
High blood pressure33.3%
High cholesterol33.5%
Heart disease7.9%
Stroke3.6%
Asthma11.0%
Arthritis31.3%
Kidney disease3.4%
Pulmonary disease7.8%
Cancer8.3%
Behavior / access%
Binge drinking15.7%
No physical activity20.3%
Less than 7 hrs sleep31.2%
Fair or poor health15.3%
Poor mental health15.2%
Poor physical health12.1%
No health insurance9.2%
Visited doctor (checkup)71.9%
Visited dentist66.6%
Cholesterol screening88.7%
Teeth loss13.1%

Veterans & disability

VeteransCount%
Civilian veterans11613.7%
Disability%
Any disability17.7%
Under 184.2%
18–64 years18.0%
65 and over38.0%

Health insurance coverage

Type%
Private insurance47.9%
Public insurance58.7%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,09198.2%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)1,111100.0%
Born in same state1,10399.3%
Born in different state74567.1%
Foreign born80.7%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Italian16314.7%
French12511.3%
Arab464.1%
Polish353.2%
AncestryCount%
Dutch242.2%
Irish161.4%
English90.8%

Technology access

Metric% of households
Computer access30.9%
Internet access97.1%

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

Frequently asked questions
What ZIP codes does Fairfield, WA have?
Fairfield, WA has one ZIP code: 99012. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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