ZIP code 99403
Where is ZIP code 99403?
Clarkston, Washington
Asotin County · Standard ZIP code
ZIP code 99403 belongs to Clarkston, Washington in Asotin County. 99403 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 codes 208, 509 and 986. About 20,760 people live in the 99403 area, where the median household income is $71,482. The closest ZIP codes are 99179 (Uniontown, 9.2 mi north), 83501 (Lewiston, 9.9 mi east) and 83540 (Lapwai, 13.1 mi east).
| ZIP code | 99403 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Clarkston |
| State | Washington (WA) |
| County | Asotin County |
| Time zone | Pacific Time · now |
| Area codes | 208, 509, 986 |
| Coordinates | 46.3946, -117.0645 map |
| 3-digit prefix | 994 |
Population and income in 99403
| Population | 20,760 · higher than 71% of Washington ZIP codes |
|---|---|
| People per square mile | 145 · higher than 50% of Washington ZIP codes |
| Median age | 45.7 years · higher than 66% of Washington ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $71,482 · lower than 69% of Washington ZIP codes |
| Income per person | $39,953 |
| Below the poverty line | 15% |
| Bachelor’s degree or higher | 25% of adults 25+ |
| Median home value | $325,300 · lower than 76% of Washington ZIP codes |
| Median rent | $1,036 a month |
| Housing units | 9,281 |
| Households | 8,743 (2.35 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 143.49 sq mi (plus 1.37 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 99403. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 99403
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 99179 | Uniontown, WA | 9.2 mi N | Standard |
| 83501 | Lewiston, ID | 9.9 mi E | Standard |
| 83540 | Lapwai, ID | 13.1 mi E | Standard |
| 83832 | Genesee, ID | 13.8 mi NE | Standard |
| 99113 | Colton, WA | 14.4 mi N | Standard |
| 99402 | Asotin, WA | 18.2 mi S | Standard |
| 99401 | Anatone, WA | 18.4 mi S | Standard |
| 83524 | Culdesac, ID | 19.6 mi E | Standard |
| 83535 | Juliaetta, ID | 20.7 mi NE | Standard |
| 83843 | Moscow, ID | 23.5 mi N | Standard |
| 83844 | Moscow, ID | 23.5 mi N | Unique |
| 83555 | Winchester, ID | 23.8 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 99403 or measure the distance to another ZIP code.
How to address mail to 99403
123 MAIN ST
CLARKSTON WA 99403
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (99403-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 99403?
- 99403 is a Clarkston, Washington ZIP code.
- What county is 99403 in?
- ZIP code 99403 is in Asotin County, Washington.
- What time zone is ZIP code 99403 in?
- 99403 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 99403?
- Phone numbers in ZIP code 99403 use area codes 208, 509 and 986.
- What is the population of ZIP code 99403?
- About 20,760 people live in ZIP code 99403, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 99403?
- The median household income in 99403 is $71,482 a year, lower than 69% of Washington ZIP codes.
- What ZIP codes are near 99403?
- The nearest ZIP codes to 99403 are 99179 (Uniontown, 9.2 miles), 83501 (Lewiston, 9.9 miles), 83540 (Lapwai, 13.1 miles) and 83832 (Genesee, 13.8 miles).