| City: | Marshall, Washington |
| County: | Spokane County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 10:20:03 AM |
| Population: | 52 [See All] |
| Area Code: | 509 |
| Classification: | PO Box |
| Coordinates: | 47.5626, -117.4968 |
| Land Area: | 0.043 sq mi |
| Quick Link: |
Marshall sits at the edge of Spokane's western suburbs, where rural carrier routes blend into city delivery patterns. The post office here operates as more than a local facility. With 67 PO Boxes serving just 22 occupied households, the adoption rate of 3.04 points to something unusual.
This isn't just overflow from a growing neighborhood. Marshall's post office draws customers from surrounding unincorporated areas where street delivery doesn't reach. The delivery mix tells the story: one city route serves the immediate vicinity, but three rural routes extend into the broader service area. That's why the box count exceeds local housing by such a margin.
The census counts 52 residents in this tiny ZIP code, spread across 0.0036 square miles. That makes Marshall one of the smallest geographic ZIPs in Washington, yet it maintains a disproportionately large postal footprint. The median age of 50.5 years suggests an established community rather than new development.
Three streets handle carrier delivery: S Marshall Ave carries most of the load with two ZIP+4 records, while W Spring Rd and S Praincom Ave each have one. The named building in the database is simply "POSTMASTER," confirming this ZIP's primary function as a postal service hub rather than a residential center. Thirteen businesses maintain addresses here, triple the residential count, further emphasizing its role as a service node on Spokane's western fringe.
The three-street network represents a minimal suburban footprint, with most addresses using PO Boxes rather than street delivery.
ZIP Code 99020 has 52 residents and 22 households (average 2.36 persons per household). The median age is 50.5 years, significantly older than the state (38.1) and significantly older than the nation (38.8). The gender split is 53.8% male and 46.2% female, which is higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (84.6%, much higher than the state average of 66.6% and well above the national average of 61.6%) and Hispanic or Latino (15.4%); Hispanic or Latino residents make up 15.4%, which is lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 52Source: Census DHC |
| 2024 ACS Population Estimate: | 16Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,209.3 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 22Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 2.36Source: Census DHC |
| Average Family Size: | 1.86Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 145 | 104 | 66 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 16 |
| Decennial Census | 82 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 52 | -- | -- | -- | -- |
Median Age: 50.5
Male Median Age: 44.5
Female Median Age: 52
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 1 | 1 | 4 | 1 | 3 | 1 | 1 | 2 | 1 | 0 | 0 | 0 | 7 | 6 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 8 | 3 | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 1 | 1 | 4 | 1 | 3 | 2 | 2 | 3 | 9 | 3 | 10 | 0 | 7 | 6 | 0 | 0 | 0 |
| White: | 44 | 84.62% |
| Black: | 0 | 0% |
| Hispanic:* | 8 | 15.38% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 52 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 28 | 53.85% | 44.5 years |
| Females: | 24 | 46.15% | 52.0 years |
| Total: | 52 | 100% | 50.5 years |
| Native, born in the United States: | 16 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 16 | 100% |
| Total Native Population: | 16 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $17,880 (100.0%) since 2011 and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has stayed about the same from 2011 to 2024. The labor-force participation rate is 0.0%, which is markedly below the national rate (63.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $17,880 | $17,228 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $19,783 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $16,607 | $16,603 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 16 | 100.00% |
| Total: | 16 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2024, the median home value is $0, which is much lower than the national median ($332,700), is down $157,900 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $157,900 | $152,700 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 7 | 100.00% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0.00% |
| Renter Occupied: | 0 | 0.00% |
| Total Occupied Housing Units: | 7 | 100% |
| Occupied Housing Units: | 7 | 100.00% |
| Vacant Housing Units (not graphed): | 0 | 0.00% |
| Total Housing Units: | 7 | 100% |
| Single-Family Units: | 7 | 100.00% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 7 | 100% |
In 2024, 56.30% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.70%). High school or higher is 100.00%, which is comparable to the national rate (89.60%). The uninsured rate is 0.00%, which is comparable to the national rate (8.40%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Insufficient data for school enrollment.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 7 | 43.75% |
| Some college, no degree: | 0 | 0.00% |
| Associate's degree: | 0 | 0.00% |
| Bachelor's degree: | 9 | 56.25% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 16 | 100% |
| High school or higher: | 16 | 100.00% |
| Bachelor's degree or higher: | 9 | 56.25% |
| Private Insurance: | 0 | 0.00% |
| Public Insurance: | 16 | 100.00% |
| No Insurance: | 0 | 0.00% |
| Total: | 16 | 100% |
| Has Health Insurance: | 16 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0% |
| Kindergarten: | 0 | 0% |
| Elementary school (grades 1-8): | 0 | 0% |
| High school (grades 9-12): | 0 | 0% |
| College or graduate school: | 0 | 0% |
| Total: | 0 | 100% |
| Early Childhood: | 0 | 0% |
| K-12 (Primary & Secondary School): | 0 | 0% |
ZIP Code 99020 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 12 people with an annual payroll of $318,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 4,318Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $58,000Source: CBP |
| Annual Payroll: | $318,000Source: CBP |
| # of Employees: | 12Source: CBP |
ZIP Code 99020 is located in Spokane County, Washington, within the Spokane-Spokane Valley, WA Metropolitan Statistical Area (CBSA 44060) and Washington's 5th Congressional District. This Metro area has a population of 471,221 people, about 0.01% of whom live in ZIP Code 99020. It covers 0.043 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Spokane-Spokane Valley, WASource: Census |
| CBSA Number: | 44060Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 471,221Source: Census |
| MSA: | Spokane, WA MSASource: Census |
| Land Area: | 0.043 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 05Source: USPS |
| Congressional Land Area: | 15473.13 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 99020 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.