Coulee City, WA · standard
ZIP Code 99115
Grant County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,143
- 1/sq mi Low-density area
- $62,708
- Median income Near-median income area
- $247,200
- Median home value Near-median home value
- 18.0%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Coulee City pairs a below-median household income with above-median home values, in a rural, homeowner-dominated area.
- 34th pct
- household income, US ZIPs
- Top 43%
- home value, US ZIPs
- 1
- people per sq mi
- 70%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99115 against every reporting US ZIP.
ZIP code 99115 is a sparsely populated ZIP (a standard USPS delivery area) in Coulee City, Grant County, Washington, home to just 1,143 residents across 1039.1 square miles, a density of 1 people per square mile, in the Los Angeles time zone.
ZIP 99115 reports a modest median household income of $62,708 (31% below the average Washington ZIP), while per-capita income is $28,432. The poverty rate is 7.0%, with unemployment at 4.5%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $247,200 (52% below the average Washington ZIP), and median rent is $725; owner occupancy is 69.7%.
Educational attainment sits below the national norm: 18.0% of adults hold a bachelor's degree or higher, the median age is 50.5, and the average commute is -. No nearby ZIP peer set is available for this delivery area, so the Washington and national benchmarks above are the appropriate context for 99115.
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 99115
Top 5 sectors by establishment count in Coulee City, WA
Which industries have the most business establishments in ZIP 99115.
- Retail trade
Retail trade
6 establishments
- Accommodation and food services
Accommodation and food services
6 establishments
- Construction
Construction
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 99115, Coulee City, 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
1,143
Population
1039.1
Area (sq mi)
1
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 99115?
50.5
Median Age
49.1%
Male
50.9%
Female
0.8%
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?
$62,708
Median Household Income
-31% vs state ZIP avg
$28,432
Per Capita Income
7.0%
Poverty Rate
4.5%
Unemployment Rate
How ZIP 99115 ranks among Washington ZIPs
Coulee City, 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)
$62,708 18th percentile higher than 18% 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
982housing units
982
Total Housing Units
552
Occupied Units
430
Vacant Units
2.48
Avg Household Size
Occupancy Type
$247,200
Median Home Value
-52% vs state ZIP avg
$725
Median Rent
1975
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 25 business establishments in ZIP 99115, employing approximately 147 people with a combined annual payroll of $8,324,000.
25
Businesses
147
Employees
$8.3M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 6 | 24.0% |
| Accommodation and food services | 6 | 24.0% |
| Construction | 3 | 12.0% |
| Other services (except public administration) | 3 | 12.0% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 99115, 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 (1,143 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Grant County
Related Areas
Frequently Asked Questions
What county is ZIP code 99115 in?
ZIP code 99115 (Coulee City) is located in Grant County, Washington. Grant County contains multiple ZIP codes, see the full list at /counties/grant-wa.
What is the population of ZIP code 99115?
ZIP code 99115 in Coulee City, WA has a population of 1,143 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99115?
The median household income in ZIP 99115 is $62,708, which is 18% below the national average of $76,288.
What is the average home value in ZIP 99115?
The median home value in ZIP 99115 is $247,200, which is 11% below the national average of $278,155.
What is the demographic makeup of ZIP 99115?
The largest racial group in ZIP 99115 is White at 85.4%. Hispanic or Latino residents make up 1.4% of the population.
How many businesses are in ZIP code 99115?
ZIP code 99115 has 25 business establishments employing approximately 147 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99115?
The top industries by establishment count in ZIP 99115 are: Retail trade (6), Accommodation and food services (6), Construction (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 99115?
In ZIP code 99115, 55.6% of residents aged 25+ have a high school diploma or higher, and 18.0% 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 99115?
In ZIP code 99115, approximately 69.7% of occupied housing units are owner-occupied and 30.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99115?
The poverty rate in ZIP code 99115 is 7.0% 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 99115's numbers, next.
- See how ZIP 99115 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Coulee City, WA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.