Soap Lake ZIP Codes — Grant County, WA

There is one unique ZIP code in Soap Lake, Washington and it is 98851. Area code: 509.

ZIP codes

146.06

sq mi land

4.40

sq mi water

509

area code

Soap Lake, WA ZIP code map

About Soap Lake, WA

Soap Lake, Washington is a small city nestled in Grant County, known for its unique mineral-rich waters. This charming community offers a blend of natural beauty and small-town charm, making it a delightful destination for visitors and residents alike. The city is especially famous for its healing waters, which draw health enthusiasts and tourists year-round.

Location & geography

Soap Lake is located in the central part of Washington State, approximately 11 miles from the larger city of Ephrata and about 20 miles from Moses Lake. The city covers a total area of 146.06 square miles, with 4.40 square miles designated as water, primarily consisting of the renowned Soap Lake itself. Surrounding hills and flat plains characterize the terrain, providing picturesque views and recreational opportunities.

Community & economy

The community of Soap Lake is characterized by its friendly and welcoming atmosphere, where residents often engage in outdoor activities and local events. The economy is primarily driven by tourism related to the lake's mineral waters, along with agricultural activities in the surrounding areas. Daily life in Soap Lake reflects a slower pace, with a strong emphasis on community gatherings and appreciation for the natural environment.

Transportation

Transporting goods and residents in Soap Lake is facilitated by Washington State Route 17, which connects the city to nearby regions. The nearest major airport is Grant County International Airport, located about 18 miles away in Moses Lake, providing essential connections for air travel. Public transportation options are limited, so most residents rely on personal vehicles for commuting.

History

Soap Lake was founded in the early 20th century, gaining attention for its unique mineral springs believed to have healing properties. Historically, the city has been linked to the health and wellness industry, with several resorts established around the lake to cater to visitors seeking therapeutic benefits. Notable events in the area often revolve around the lake, highlighting its central role in the community's identity.

Did you know?

One surprising fact about Soap Lake is that its waters contain high levels of minerals, including magnesium, which are thought to be therapeutic. The annual Soap Lake Water Festival is a local highlight, celebrating the city's unique natural resources and attracting visitors from surrounding areas.

ZIP codes for Soap Lake, WA (1)

ZIP code	City	County	Map
98851	Soap Lake	Grant	View map

Demographics & statistics

5,196

Population

35.0

Median age

$64,810

Median household income

$26,125

Per capita income

$198,000

Median home value

$776

Median monthly rent

73.2%

Home ownership

13.9%

Poverty rate

8.2%

Unemployment

1,669

Housing units

14.6%

Bachelor's or higher

Age distribution

Male Female

146

Under 5

140

342

5–9

327

183

10–14

175

239

15–19

229

147

20–24

141

269

25–34

257

440

35–44

420

164

45–54

157

124

55–59

118

102

60–64

337

65–74

323

109

75–84

105

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,596	30.7%
18 and over	3,600	69.3%
65 and over	978	18.8%
Median age	35.0 years

Race & ethnicity

White 63.2%

Hispanic or Latino 14.3%

Other race 13.5%

Two or more races 5.5%

American Indian / Alaska Native 1.9%

Asian 1.6%

Group	Count	%
White	3,834	63.2%
Hispanic or Latino	868	14.3%
Other race	819	13.5%
Two or more races	333	5.5%
American Indian / Alaska Native	113	1.9%
Asian	97	1.6%

Household income

Under $10k 4.7%

$10k–$15k 9.6%

$15k–$25k 6.7%

$25k–$35k 9.6%

$35k–$50k 10.3%

$50k–$75k 16.8%

$75k–$100k 11.2%

$100k–$150k 16.8%

$150k–$200k 4.0%

$200k+ 10.3%

Range	% of households
Under $10k	4.7%
$10k–$15k	9.6%
$15k–$25k	6.7%
$25k–$35k	9.6%
$35k–$50k	10.3%
$50k–$75k	16.8%
$75k–$100k	11.2%
$100k–$150k	16.8%
$150k–$200k	4.0%
$200k+	10.3%
Median income	$64,810

Housing

Home values

Under $50k 7.2%

$50k–$100k 14.0%

$100k–$150k 13.3%

$150k–$200k 16.4%

$200k–$300k 25.2%

$300k–$500k 16.4%

$500k–$1M 7.7%

Housing overview

Metric	Value
Median home value	$198,000
Median rent / month	$776
Owner occupied	73.2%
Renter occupied	26.8%
Vacant	21.7%
Single-family detached	59.5%
Large apartment buildings	0.0%
Mobile homes	22.5%
Median rooms	5.3
Avg household size (owned)	2.75

Year built

Era	%
2020 or later	0.5%
2010–2019	5.0%
2000–2009	13.2%
1990–1999	10.0%
1980–1989	13.8%
1970–1979	7.7%
1960–1969	7.0%
1950–1959	27.1%
1940–1949	9.1%
1939 or earlier	6.6%

Bedrooms

Size	% of units
No bedroom (studio)	3.6%
1 bedroom	16.9%
2 bedrooms	27.5%
3 bedrooms	33.9%
4 bedrooms	10.7%
5+ bedrooms	7.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.2%
1 vehicle	22.1%
2 vehicles	38.7%
3 or more	33.0%

Heating fuel

Fuel type	%
Utility gas	0.7%
Electricity	94.8%
Propane / LP gas	0.6%
Fuel oil	1.8%
Wood	1.6%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	819	49.5%
Cohabiting couple	104	6.3%
Male householder, no spouse	447	27.0%
Female householder, no spouse	284	17.2%
Households with children under 18	521	31.5%
Households with seniors (65+)	689	41.7%
Average household size	3.11

Marital status

Status	Male	Female
Never married	41.4%	24.8%
Married	43.8%	48.5%
Separated	0.5%	5.0%
Widowed	2.9%	10.1%
Divorced	11.4%	11.7%

Education

Less than 9th grade 5.1%

Some HS, no diploma 12.0%

HS graduate 35.1%

Some college, no degree 23.0%

Associate's degree 10.3%

Bachelor's degree 9.2%

Graduate / professional 5.4%

Metric	%
HS diploma or higher	83.0%
Bachelor's or higher	14.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	73	4.6%
Kindergarten	111	7.1%
Elementary school	804	51.1%
High school	403	25.6%
College / grad school	181	11.5%

Employment

Industry of employment

Agriculture & mining 19.9%

Education & healthcare 18.7%

Retail trade 12.0%

Transportation & utilities 9.0%

Professional & management 7.9%

Arts, food & hospitality 7.5%

Finance & real estate 5.9%

Other services 5.0%

Construction 4.9%

Public administration 3.8%

Manufacturing 3.2%

Wholesale trade 1.3%

Information 1.0%

Occupation

Category	%
Management, business & arts	18.4%
Service	30.5%
Sales & office	20.3%
Natural resources & construction	18.3%
Production & transportation	12.5%

Employment type

Type	%
Private sector	69.6%
Government	20.5%
Self-employed	9.4%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	69.0%
Carpool	13.3%
Public transit	1.0%
Walk	1.8%
Other means	0.9%
Avg commute (minutes)	22.4

Poverty

All people 13.9%

Under 18 years 10.9%

18 and over 15.1%

Married-couple families 8.1%

Female-led households 53.3%

Income support

Source	% of households
Social Security	43.8%
Retirement income	34.8%
Supplemental Security	9.3%
Cash public assistance	4.9%
Food stamps / SNAP	19.8%

Health indicators

Condition	%
High blood pressure	40.7%
High cholesterol	42.0%
Heart disease	9.2%
Stroke	4.6%
Asthma	11.5%
Arthritis	31.1%
Kidney disease	4.1%
Pulmonary disease	9.8%
Cancer	8.7%

Behavior / access	%
Binge drinking	14.1%
No physical activity	24.3%
Less than 7 hrs sleep	29.3%
Fair or poor health	19.2%
Poor mental health	15.6%
Poor physical health	14.7%
No health insurance	13.5%
Visited doctor (checkup)	72.6%
Visited dentist	62.7%
Cholesterol screening	88.4%
Teeth loss	15.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	256	7.1%

Disability	%
Any disability	15.8%
Under 18	4.7%
18–64 years	17.0%
65 and over	31.2%

Health insurance coverage

Type	%
Private insurance	39.2%
Public insurance	57.4%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,910	94.5%
Spanish	550	11.2%
Other Indo-European	376	7.7%
Asian & Pacific Islander	174	3.5%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,267	82.1%
Born in same state	4,255	81.9%
Born in different state	2,683	51.6%
Foreign born	12	0.2%
Naturalized citizen	929	17.9%
Not a US citizen	322	34.7%

Ancestry

Ancestry	Count	%
Italian	812	15.6%
Polish	381	7.3%
French	324	6.2%
Arab	58	1.1%

Ancestry	Count	%
German	18	0.3%
English	14	0.3%
Dutch	8	0.2%

Technology access

Metric	% of households
Computer access	31.8%
Internet access	89.3%

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

Frequently asked questions

What ZIP codes does Soap Lake, WA have?

Soap Lake, WA has one ZIP code: 98851. Each ZIP code serves a distinct delivery area within the city and surrounding region.