Rosalia, WA · standard
ZIP Code 99170
Whitman County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,072
- 2/sq mi Low-density area
- $58,750
- Median income Below-median income area
- $238,300
- Median home value Near-median home value
- 17.8%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Rosalia pairs a below-median household income with above-median home values, in a rural, homeowner-dominated area.
- 27th pct
- household income, US ZIPs
- Top 45%
- home value, US ZIPs
- 2
- people per sq mi
- 84%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99170 against every reporting US ZIP.
ZIP code 99170 is a sparsely populated ZIP (a standard USPS delivery area) in Rosalia, Whitman County, Washington, home to just 1,072 residents across 466.1 square miles, a density of 2 people per square mile, in the Los Angeles time zone.
ZIP 99170 reports a modest median household income of $58,750 (35% below the average Washington ZIP), while per-capita income is $35,231. The poverty rate is 12.3%, with unemployment at 6.0%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $238,300 (53% below the average Washington ZIP), and median rent is $825; owner occupancy is 83.9%.
Educational attainment sits below the national norm: 17.8% of adults hold a bachelor's degree or higher, the median age is 50.5, and the average commute is -. The page also surfaces 2 ZIP codes within roughly 10 miles and 6 more in Whitman County, so 99170 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 99170
Top 5 sectors by establishment count in Rosalia, WA
Which industries have the most business establishments in ZIP 99170.
- Construction
Construction
5 establishments
- Wholesale trade
Wholesale trade
5 establishments
- Retail trade
Retail trade
3 establishments
- Other services (except public administration)
Other services (except public administration)
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 99170, Rosalia, 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
1,072
Population
466.1
Area (sq mi)
2
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 99170?
50.5
Median Age
56.7%
Male
43.3%
Female
1.2%
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?
$58,750
Median Household Income
-35% vs state ZIP avg
$35,231
Per Capita Income
12.3%
Poverty Rate
6.0%
Unemployment Rate
How ZIP 99170 ranks among Washington ZIPs
Rosalia, 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)
$58,750 12th percentile higher than 12% 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
487housing units
487
Total Housing Units
423
Occupied Units
64
Vacant Units
2.19
Avg Household Size
Occupancy Type
$238,300
Median Home Value
-53% vs state ZIP avg
$825
Median Rent
1941
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 23 business establishments in ZIP 99170, employing approximately 83 people with a combined annual payroll of $4,869,000.
23
Businesses
83
Employees
$4.9M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 5 | 21.7% |
| Wholesale trade | 5 | 21.7% |
| Retail trade | 3 | 13.0% |
| Other services (except public administration) | 3 | 13.0% |
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 99170 vs 99149 →
ZIP 99170 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 99170
Rosalia (99170)
1,072 residents
- 99149 208
Malden (99149)
208 residents
- 99039 87
Waverly (99039)
87 residents
What this shows Among its immediate neighbors, ZIP 99170 ranks the most populous - useful context the national average alone can't give.
ZIP 99170 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 99039
Waverly (99039)
$65,909 median income
- 99170
Rosalia (99170)
$58,750 median income
- 99149 $26,250
Malden (99149)
$26,250 median income
What this shows By household income, ZIP 99170 ranks #2 of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 99170, 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 (1,072 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Whitman County
Related Areas
Frequently Asked Questions
What county is ZIP code 99170 in?
ZIP code 99170 (Rosalia) is located in Whitman County, Washington. Whitman County contains multiple ZIP codes, see the full list at /counties/whitman-wa.
What is the population of ZIP code 99170?
ZIP code 99170 in Rosalia, WA has a population of 1,072 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99170?
The median household income in ZIP 99170 is $58,750, which is 23% below the national average of $76,288.
What is the average home value in ZIP 99170?
The median home value in ZIP 99170 is $238,300, which is 14% below the national average of $278,155.
What is the demographic makeup of ZIP 99170?
The largest racial group in ZIP 99170 is White at 84.9%. Hispanic or Latino residents make up 5.8% of the population.
How many businesses are in ZIP code 99170?
ZIP code 99170 has 23 business establishments employing approximately 83 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99170?
The top industries by establishment count in ZIP 99170 are: Construction (5), Wholesale trade (5), Retail trade (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 99170?
In ZIP code 99170, 48.6% of residents aged 25+ have a high school diploma or higher, and 17.8% 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 99170?
In ZIP code 99170, approximately 83.9% of occupied housing units are owner-occupied and 16.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99170?
The poverty rate in ZIP code 99170 is 12.3% 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 99170's numbers, next.
- See how ZIP 99170 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Rosalia, 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.