Rock Island, WA · standard
ZIP Code 98850
Douglas County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,543
- 26/sq mi Moderate-density area
- $83,125
- Median income Near-median income area
- $374,700
- Median home value Above-median home value
- 10.9%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Rock Island pairs an above-median household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 34%
- household income, US ZIPs
- Top 23%
- home value, US ZIPs
- 26
- people per sq mi
- 82%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 98850 against every reporting US ZIP.
ZIP code 98850 covers 58.9 square miles in Rock Island, Douglas County, Washington (a standard USPS delivery area), with a modest 1,543 residents on file, a density of 26 people per square mile, in the Los Angeles time zone.
ZIP 98850 lands in the middle-income range, with a median household income of $83,125 (9% below the average Washington ZIP), while per-capita income is $27,599. The poverty rate is 10.5%, with unemployment at 1.7%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $374,700 (27% below the average Washington ZIP), and median rent is $1,031; owner occupancy is 82.0%.
Formal educational attainment runs low here: just 10.9% of adults hold a bachelor's degree or higher, the median age is 37.1, and the average commute is -. The page also surfaces 1 ZIP codes within roughly 10 miles and 6 more in Douglas County, so 98850 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 98850
Top 5 sectors by establishment count in Rock Island, WA
Which industries have the most business establishments in ZIP 98850.
- Construction
Construction
14 establishments
- Retail trade 5
Retail trade
5 establishments
- Administrative and support and waste management and remediation services 3
Administrative and support and waste management and remediation services
3 establishments
- Accommodation and food services 3
Accommodation and food services
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 98850, Rock Island, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,543
Population
58.9
Area (sq mi)
26
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 98850?
37.1
Median Age
45.7%
Male
54.3%
Female
16.7%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$83,125
Median Household Income
-9% vs state ZIP avg
$27,599
Per Capita Income
10.5%
Poverty Rate
1.7%
Unemployment Rate
How ZIP 98850 ranks among Washington ZIPs
Rock Island, WA household income vs. every Washington ZIP code
Median household income among 547 reporting Washington ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$83,125 48th percentile higher than 48% of 547 Washington ZIPs
Each bar is a $20K-wide band; taller bars hold more Washington ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
711housing units
711
Total Housing Units
684
Occupied Units
27
Vacant Units
2.80
Avg Household Size
Occupancy Type
$374,700
Median Home Value
-27% vs state ZIP avg
$1,031
Median Rent
1977
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 36 business establishments in ZIP 98850, employing approximately 178 people with a combined annual payroll of $9,320,000.
36
Businesses
178
Employees
$9.3M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 14 | 38.9% |
| Retail trade | 5 | 13.9% |
| Administrative and support and waste management and remediation services | 3 | 8.3% |
| Accommodation and food services | 3 | 8.3% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 98850 vs 98828 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 98828 | Malaga, WA | 2,146 | 4.6 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 98850, both outside WA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,543 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Douglas County
Related Areas
Frequently Asked Questions
What county is ZIP code 98850 in?
ZIP code 98850 (Rock Island) is located in Douglas County, Washington. Douglas County contains multiple ZIP codes, see the full list at /counties/douglas-wa.
What is the population of ZIP code 98850?
ZIP code 98850 in Rock Island, WA has a population of 1,543 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 98850?
The median household income in ZIP 98850 is $83,125, which is 9% above the national average of $76,288.
What is the average home value in ZIP 98850?
The median home value in ZIP 98850 is $374,700, which is 35% above the national average of $278,155.
What is the demographic makeup of ZIP 98850?
The largest racial group in ZIP 98850 is White at 54.6%. Hispanic or Latino residents make up 39.0% of the population.
How many businesses are in ZIP code 98850?
ZIP code 98850 has 36 business establishments employing approximately 178 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 98850?
The top industries by establishment count in ZIP 98850 are: Construction (14), Retail trade (5), Administrative and support and waste management and remediation services (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 98850?
In ZIP code 98850, 36.9% of residents aged 25+ have a high school diploma or higher, and 10.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 98850?
In ZIP code 98850, approximately 82.0% of occupied housing units are owner-occupied and 18.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 98850?
The poverty rate in ZIP code 98850 is 10.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 98850's numbers, next.
- See how ZIP 98850 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Rock Island, WA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.