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Washington ZIP Codes
Spokane County
Medical Lake, WA
99022
99022 ZIP Code — Medical Lake, WA
Spokane County, Washington
ZIP code 99022 is located in
Medical Lake ,
Washington ,
within Spokane County .
It covers approximately 68.34 square miles and serves a population of
9,012 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 509 .
About ZIP code 99022
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $300,500. Owner-occupancy is high at 82%, well above the national average.
Median household income is $87,462. The poverty rate of 6% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.
Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 17% of civilians, above the national average of 7%.
Overall, ZIP code 99022 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.
99022 ZIP code map
View map of 99022
Cities in ZIP code 99022
Below are the cities the US Postal Service accepts for ZIP code 99022. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
9,012
Population density
132 / sq mi
State FIPS
53
County FIPS
063
Geography
Land area
68.34 sq mi
Water area
1.85 sq mi
Latitude
47.6089
Longitude
-117.7190
Timezone
Pacific (PT)
Area code
509
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.5%
41.6%
31.7%
$50k – $100k
43.8%
32.2%
30.6%
$100k – $200k
25.7%
20.8%
27.1%
Over $200k
2.1%
5.5%
10.6%
Demographics & statistics
$87,462
Median household income
$300,500
Median home value
29.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,814 20.1%
18 and over 7,198 79.9%
65 and over 1,353 15.0%
Median age 40.6 years
Race & ethnicity
Black or African American
2.2%
American Indian / Alaska Native
0.6%
Native Hawaiian / Pacific Islander
0.1%
Group Count %
White 7,882 81.9%
Hispanic or Latino 611 6.3%
Other race 366 3.8%
Two or more races 363 3.8%
Black or African American 210 2.2%
Asian 127 1.3%
American Indian / Alaska Native 57 0.6%
Native Hawaiian / Pacific Islander 7 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.5%
41.6%
31.7%
$50k – $100k
43.8%
32.2%
30.6%
$100k – $200k
25.7%
20.8%
27.1%
Over $200k
2.1%
5.5%
10.6%
Range % of households
Under $10k 0.4%
$10k–$15k 4.9%
$15k–$25k 2.3%
$25k–$35k 5.9%
$35k–$50k 11.2%
$50k–$75k 17.6%
$75k–$100k 13.6%
$100k–$150k 31.7%
$150k–$200k 10.2%
$200k+ 2.2%
Median income $87,462
Housing
Housing overview
Metric Value
Median home value $300,500
Median rent / month $738
Owner occupied 82.3%
Renter occupied 17.7%
Vacant 3.4%
Single-family detached 73.0%
Large apartment buildings 7.5%
Mobile homes 11.2%
Median rooms 6.1
Avg household size (owned) 2.70
Year built
Era %
2020 or later 0.2%
2010–2019 5.4%
2000–2009 21.9%
1990–1999 22.3%
1980–1989 5.9%
1970–1979 24.4%
1960–1969 5.6%
1950–1959 6.9%
1940–1949 1.7%
1939 or earlier 5.7%
Bedrooms
Size % of units
No bedroom (studio) 0.2%
1 bedroom 6.9%
2 bedrooms 21.5%
3 bedrooms 46.1%
4 bedrooms 16.4%
5+ bedrooms 8.8%
Vehicles per household
Vehicles % of households
No vehicle 5.8%
1 vehicle 22.6%
2 vehicles 32.2%
3 or more 39.4%
Heating fuel
Fuel type %
Utility gas 41.9%
Electricity 49.9%
Propane / LP gas 4.0%
Fuel oil 1.7%
Wood 2.6%
Households & families
Household type Count %
Married-couple family 1,969 61.5%
Cohabiting couple 157 4.9%
Male householder, no spouse 382 11.9%
Female householder, no spouse 693 21.6%
Households with children under 18 1,079 33.7%
Households with seniors (65+) 816 25.5%
Average household size 2.64
Marital status
Status Male Female
Never married 34.5% 25.3%
Married 52.6% 54.2%
Separated 0.8% 3.1%
Widowed 1.1% 3.5%
Divorced 11.0% 13.9%
Education
Some college, no degree
23.5%
Graduate / professional
6.5%
Metric %
HS diploma or higher 94.9%
Bachelor's or higher 29.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 64 3.6%
Kindergarten 71 4.0%
Elementary school 797 44.5%
High school 549 30.7%
College / grad school 309 17.3%
Employment
Industry of employment
Education & healthcare
29.0%
Transportation & utilities
8.3%
Public administration
7.9%
Finance & real estate
7.3%
Professional & management
7.3%
Arts, food & hospitality
5.9%
Agriculture & mining
0.5%
Occupation
Category %
Management, business & arts 41.9%
Service 17.2%
Sales & office 15.0%
Natural resources & construction 4.2%
Production & transportation 21.7%
Employment type
Type %
Private sector 68.1%
Government 30.3%
Self-employed 1.7%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 80.2%
Carpool 5.8%
Public transit 3.9%
Walk 1.3%
Work from home 8.1%
Other means 0.7%
Avg commute (minutes) 23.2
Poverty
Married-couple families
0.0%
Female-led households
24.0%
Income support
Source % of households
Social Security 34.5%
Retirement income 27.6%
Supplemental Security 7.0%
Cash public assistance 2.1%
Food stamps / SNAP 10.4%
Health indicators
Condition %
Obesity 34.4%
High blood pressure 29.8%
High cholesterol 31.7%
Diabetes 9.1%
Heart disease 6.0%
Stroke 2.9%
Asthma 11.4%
Arthritis 27.2%
Kidney disease 2.8%
Pulmonary disease 6.8%
Cancer 6.4%
Behavior / access %
Smoking 16.2%
Binge drinking 17.0%
No physical activity 19.3%
Less than 7 hrs sleep 32.2%
Depression 26.5%
Fair or poor health 14.3%
Poor mental health 16.1%
Poor physical health 11.3%
No health insurance 9.6%
Visited doctor (checkup) 70.1%
Visited dentist 66.5%
Cholesterol screening 87.5%
Teeth loss 11.8%
Veterans & disability
Veterans Count %
Civilian veterans 1,209 17.1%
Disability %
Any disability 19.4%
Under 18 8.3%
18–64 years 18.0%
65 and over 41.5%
Health insurance coverage
Type %
Private insurance 70.2%
Public insurance 43.2%
No insurance 5.1%
Uninsured under 19 2.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 8,685 96.4%
Spanish 252 2.9%
Other Indo-European 43 0.5%
Asian & Pacific Islander 147 1.7%
Other languages 62 0.7%
Place of birth & citizenship
Origin Count %
Native born (US) 8,452 93.8%
Born in same state 8,343 92.6%
Born in different state 4,367 48.5%
Foreign born 109 1.2%
Naturalized citizen 560 6.2%
Not a US citizen 440 78.6%
Ancestry
Ancestry Count %
Italian 1,050 11.7%
Arab 886 9.8%
French 761 8.4%
English 272 3%
Ancestry Count %
Polish 199 2.2%
Dutch 33 0.4%
Norwegian 14 0.2%
German 12 0.1%
Technology access
Metric % of households
Computer access 35.5%
Internet access 97.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 99022
What city is ZIP code 99022 in?
ZIP code 99022 is primarily assigned to Medical Lake, Washington.
What county is ZIP code 99022 in?
ZIP code 99022 falls within Spokane County, Washington.
Does ZIP code 99022 have a large veteran population?
17% of civilians in ZIP code 99022 are veterans, above the national average of ~7%.
Is ZIP code 99022 mostly owner-occupied?
82% of occupied units in ZIP code 99022 are owner-occupied, well above the national average.
What is the population of ZIP code 99022?
ZIP code 99022 has an estimated population of 9,012 residents, with a density of 132 people per square mile.
What is the typical home value in ZIP code 99022?
The median home value in ZIP code 99022 is $300,500.
What timezone is ZIP code 99022 in?
ZIP code 99022 observes the PST timezone.
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