99115 ZIP Code, Coulee City, WA
99115 is a ZIP code in Coulee City, Washington — mostly in Douglas County (70% of its land), with smaller parts in Grant County. It covers 420 square miles of land. The closest ZIP codes are 99135, 98853 and 98830. 1,369 people live here in 552 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (70% own). Median household income is $62,708, well below the Washington median of $98,141; the median age is 50.5, older than most ZIP codes.
Quick facts
- Mailing city: Coulee City, WA
- County: Douglas County
- Land area: 420 sq mi
- Population: 1,369
- Median household income: $62,708
Key figures
| Measure | Value |
|---|---|
| Residents | 1,369 |
| Households | 552 |
| Median household income | $62,708 |
| Income per person | $28,432 |
| Median age | 50.5 |
| Homeowners | 69.7% |
| Median home value | $247,200 |
| Median rent | $725 |
| Bachelor's degree or higher | 18.0% |
| Average commute (minutes) | 26.5 |
| Households with kids under 18 | 19.2% |
| Moved in the past year | 3.1% |
| Below the poverty line | 7.0% |
| Broadband internet | 91.3% |
| Speak a non-English language at home | 0.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.7% |
| $10–15K | 4.7% |
| $15–25K | 10.1% |
| $25–35K | 13.4% |
| $35–50K | 8.9% |
| $50–75K | 31.5% |
| $75–100K | 5.6% |
| $100–150K | 20.5% |
| $150–200K | 4.5% |
| $200K+ | 0.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 9.4% |
| 10–19 | 14.1% |
| 20–24 | 3.0% |
| 25–34 | 12.2% |
| 35–44 | 4.2% |
| 45–54 | 11.2% |
| 55–64 | 10.9% |
| 65–74 | 22.1% |
| 75+ | 13.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 15.0% |
| Owned outright | 24.4% |
| Rented | 17.0% |
| Vacant | 43.7% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 60.2% |
| Townhome | 0.0% |
| 2–4 units | 0.8% |
| 5–19 units | 0.9% |
| 20+ units | 0.8% |
| Mobile / other | 37.3% |
Businesses in 99115
25 business establishments with 147 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 6
- Accommodation and Food Services: 6
- Construction: 3
- Other Services (except Public Administration): 3
EDDM carrier routes
See every USPS carrier route in 99115 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 99135 — Hartline town, WA (13.4 mi)
- 98853 (15 mi)
- 98830 — Mansfield town, WA (16 mi)
- 98851 — Soap Lake city, WA (18.2 mi)
- 98860 — Wilson Creek town, WA (19 mi)
- 99123 — Electric City city, WA (21 mi)
- 99103 — Almira town, WA (21.5 mi)
- 98858 — Waterville town, WA (23.8 mi)
Areas that include 99115
- Coulee City, WA ZIP codes — 1 ZIP code
- Banks Lake South, WA ZIP codes — 1 ZIP code
- Douglas County ZIP codes — 11 ZIP codes
- Grant County ZIP codes — 18 ZIP codes
- Washington ZIP code data
Where it ranks
- No. 5 of 9: highest share of owner-occupied homes in Douglas County
- No. 2 of 9: highest median age in Douglas County
- No. 2 of 9: fastest population growth in Douglas County
Mail every home in 99115
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 99115, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 99115 in?
- 99115 is a Coulee City, WA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 99115 in?
- 99115 is mostly in Douglas County (70% of its land), with smaller parts in Grant County.
- What is the population of 99115?
- About 1,369 people (±299), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 1,227.
- What is the median household income in 99115?
- $62,708 (±$13,344), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 99115?
- EDDM2GO's stored route library does not include 99115 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 99115?
- The closest, measured center to center: 99135 (13.4 mi, Hartline), 98853 (15 mi), 98830 (16 mi, Mansfield), 98851 (18.2 mi, Soap Lake), 98860 (19 mi, Wilson Creek) and 99123 (21 mi, Electric City).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.