99020 ZIP Code — Marshall, WA
Spokane County, Washington
ZIP code 99020 is located in Marshall, Washington, within Spokane County. It covers approximately 0.04 square miles and serves a population of 15 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.
15
population
0.04
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
99020 ZIP code map
Cities in ZIP code 99020
Below are the cities the US Postal Service accepts for ZIP code 99020. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Marshall | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 15 |
| Population density | 375 / sq mi |
| State FIPS | 53 |
| County FIPS | 063 |
| Geography | |
|---|---|
| Land area | 0.04 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 47.5626 |
| Longitude | -117.4968 |
| Timezone | Pacific (PT) |
| Area code | 509 |
Total population by age
Gender
Race & ethnicity
Demographics & statistics
15
Population
375
People per sq mi
0.0
Median age
$0
Median household income
$0
Per capita income
$0
Median home value
$0
Median monthly rent
100.0%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
7
Housing units
53.3%
Bachelor's or higher
Age distribution
Male
Female
0
35–44
8
0
75–84
7
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 0 | 0.0% |
| 18 and over | 15 | 100.0% |
| 65 and over | 7 | 46.7% |
| Median age | 0.0 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 15 | 100% |
Household income
$25k–$35k
100.0%
| Range | % of households |
|---|---|
| $25k–$35k | 100.0% |
| Median income | $0 |
Housing
Home values
$300k–$500k
100.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 100.0% |
| Renter occupied | 0.0% |
| Vacant | 0.0% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 0.0 |
| Avg household size (owned) | 2.14 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 0.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 0.0% |
| 1960–1969 | 0.0% |
| 1950–1959 | 0.0% |
| 1940–1949 | 100.0% |
| 1939 or earlier | 0.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 0.0% |
| 3 bedrooms | 0.0% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 100.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 0.0% |
| 2 vehicles | 0.0% |
| 3 or more | 100.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 100.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 0 | 0.0% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 0 | 0.0% |
| Female householder, no spouse | 7 | 100.0% |
| Households with children under 18 | 0 | 0.0% |
| Households with seniors (65+) | 7 | 100.0% |
| Average household size | 2.14 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 0.0% | 53.3% |
| Married | 0.0% | 0.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 46.7% |
| Divorced | 0.0% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
46.7%
Some college, no degree
0.0%
Associate's degree
0.0%
Bachelor's degree
53.3%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 53.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 0 | 0.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Occupation
| Category | % |
|---|---|
| Management, business & arts | 0.0% |
| Service | 0.0% |
| Sales & office | 0.0% |
| Natural resources & construction | 0.0% |
| Production & transportation | 0.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 0.0% |
| Government | 0.0% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 0.0% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
Poverty
All people
0.0%
Under 18 years
0.0%
18 and over
0.0%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 100.0% |
| Retirement income | 100.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 30.1% |
| High blood pressure | 26.3% |
| High cholesterol | 30.0% |
| Diabetes | 7.0% |
| Heart disease | 5.1% |
| Stroke | 2.2% |
| Asthma | 10.2% |
| Arthritis | 24.4% |
| Kidney disease | 2.4% |
| Pulmonary disease | 4.5% |
| Cancer | 7.0% |
| Behavior / access | % |
|---|---|
| Smoking | 10.4% |
| Binge drinking | 17.7% |
| No physical activity | 13.9% |
| Less than 7 hrs sleep | 28.8% |
| Depression | 23.8% |
| Fair or poor health | 9.5% |
| Poor mental health | 13.4% |
| Poor physical health | 8.3% |
| No health insurance | 7.1% |
| Visited doctor (checkup) | 70.3% |
| Visited dentist | 75.7% |
| Cholesterol screening | 90.4% |
| Teeth loss | 6.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 0 | 0.0% |
| Disability | % |
|---|---|
| Any disability | 46.7% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 100.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 0.0% |
| Public insurance | 100.0% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 15 | 100.0% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 15 | 100.0% |
| Born in same state | 15 | 100.0% |
| Born in different state | 15 | 100.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 8 | 53.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 46.7% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 99020
What city is ZIP code 99020 in?
ZIP code 99020 is primarily assigned to Marshall, Washington.
What county is ZIP code 99020 in?
ZIP code 99020 falls within Spokane County, Washington.
Does ZIP code 99020 have a large retiree population?
100% of households in ZIP code 99020 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 99020 have an older population?
47% of residents in ZIP code 99020 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 99020?
53% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the population of ZIP code 99020?
ZIP code 99020 has an estimated population of 15 residents, with a density of 349 people per square mile.
What timezone is ZIP code 99020 in?
ZIP code 99020 observes the PST timezone.