ZIP code 99115
Where is ZIP code 99115?
Coulee City, Washington
Grant County · Standard ZIP code
ZIP code 99115 belongs to Coulee City, Washington in Grant County. 99115 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area code 509. About 1,369 people live in the 99115 area, where the median household income is $62,708. The closest ZIP codes are 99135 (Hartline, 9 mi east), 98860 (Wilson Creek, 9.5 mi southeast) and 98853 (Stratford, 11.7 mi south).
| ZIP code | 99115 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Coulee City |
| State | Washington (WA) |
| County | Grant County |
| Time zone | Pacific Time · now |
| Area code | 509 |
| Coordinates | 47.5966, -119.2758 map |
| 3-digit prefix | 991 |
Population and income in 99115
| Population | 1,369 · lower than 66% of Washington ZIP codes |
|---|---|
| People per square mile | 3 · lower than 91% of Washington ZIP codes |
| Median age | 50.5 years · higher than 76% of Washington ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $62,708 · lower than 82% of Washington ZIP codes |
| Income per person | $28,432 |
| Below the poverty line | 7.0% |
| Bachelor’s degree or higher | 18% of adults 25+ |
| Median home value | $247,200 · lower than 88% of Washington ZIP codes |
| Median rent | $725 a month |
| Housing units | 982 |
| Households | 552 (2.48 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 420.01 sq mi (plus 28.77 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 99115. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 99115
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 99135 | Hartline, WA | 9 mi E | Standard |
| 98860 | Wilson Creek, WA | 9.5 mi SE | PO Box only |
| 98853 | Stratford, WA | 11.7 mi S | PO Box only |
| 98851 | Soap Lake, WA | 17.7 mi SW | Standard |
| 99103 | Almira, WA | 20.5 mi NE | Standard |
| 98830 | Mansfield, WA | 21.9 mi N | Standard |
| 98832 | Marlin, WA | 22.7 mi SE | Standard |
| 99123 | Electric City, WA | 24.4 mi NE | Standard |
| 98823 | Ephrata, WA | 25.1 mi SW | Standard |
| 99133 | Grand Coulee, WA | 26.9 mi NE | Standard |
| 99185 | Wilbur, WA | 28.3 mi E | Standard |
| 99124 | Elmer City, WA | 31.5 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 99115 or measure the distance to another ZIP code.
How to address mail to 99115
123 MAIN ST
COULEE CITY WA 99115
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (99115-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 99115?
- 99115 is a Coulee City, Washington ZIP code.
- What county is 99115 in?
- ZIP code 99115 is in Grant County, Washington.
- What time zone is ZIP code 99115 in?
- 99115 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 99115?
- Phone numbers in ZIP code 99115 use area code 509.
- What is the population of ZIP code 99115?
- About 1,369 people live in ZIP code 99115, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 99115?
- The median household income in 99115 is $62,708 a year, lower than 82% of Washington ZIP codes.
- What ZIP codes are near 99115?
- The nearest ZIP codes to 99115 are 99135 (Hartline, 9 miles), 98860 (Wilson Creek, 9.5 miles), 98853 (Stratford, 11.7 miles) and 98851 (Soap Lake, 17.7 miles).