Area Code 509
Washington
Area code 509 serves Washington, primarily Spokane, in the Pacific Time (PT) time zone. It has served the region since 01-Jan-1957.
Geographic Coverage
Area code 509 serves Washington, primarily the Spokane area, in the Pacific Time (PT). It covers 225 communities. The geographic center of this area code is approximately 47.23°N, 119.06°W.
History
Area code 509 was established in 1957 as a geographic area code.
Demographics
The estimated population served by area code 509 is approximately 2,076,379. The population density is 30 people per square mile, which is lower than the national average of 94. The median household income is $73,513, which is near the national median of $78,538. Approximately 27.6% of adults hold a bachelor's degree or higher, compared to the national rate of 35.0%. This rate is lower than the national average. The poverty rate stands at 13.2%, which is near the national rate of 12.4%.
Demographics & Economics
- Total Population
- 2,076,379
- Population Density
- 30 people/sq mibelow U.S. average (U.S.: 94 people/sq mi)
- Median Household Income
- $73,513near U.S. median (U.S.: $78,538)
- Poverty Rate
- 13.2%near U.S. average (U.S.: 12.4%)
- Unemployment Rate
- 5.7%near U.S. average (U.S.: 5.2%)
- Education Attainment
- Bachelor's Degree+27.6%below U.S. average (U.S.: 35.0%)High School or Lower32.3%
Statistics are population-weighted aggregations from Census ACS 5-year estimates.See Sources for details.
Geographic Coverage
State
WA
Major Cities
- Spokane
- Spokane Valley
- Yakima
- Kennewick
- Pasco
- Richland
- Wenatchee
- Walla Walla
- Pullman
- Moses Lake
- Ellensburg
- West Richland
- Sunnyside
- East Wenatchee
- Cheney
- Liberty Lake
- Grandview
- Airway Heights
- College Place
- Terrace Heights
- Toppenish
- Othello
- Ephrata
- Selah
and 201 more cities
Time Zone
- Pacific Time (PT)
Current Time
County Coverage
Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 509).
| County | Population | Share |
|---|---|---|
| Spokane, WA | 570,730 | 27.5% |
| Yakima, WA | 271,833 | 13.1% |
| Benton, WA | 248,407 | 12.0% |
| Grant, WA | 120,881 | 5.8% |
| Franklin, WA | 116,701 | 5.6% |
| Chelan, WA | 80,888 | 3.9% |
| Kittitas, WA | 78,219 | 3.8% |
| Douglas, WA | 77,457 | 3.7% |
| Whitman, WA | 72,166 | 3.5% |
| Stevens, WA | 67,852 | 3.3% |
| Walla Walla, WA | 62,244 | 3.0% |
| Okanogan, WA | 57,395 | 2.8% |
| Umatilla, OR | 42,794 | 2.1% |
| Klickitat, WA | 37,917 | 1.8% |
| Adams, WA | 35,414 | 1.7% |
| Pend Oreille, WA | 32,139 | 1.5% |
| Garfield, WA | 22,950 | 1.1% |
| Asotin, WA | 22,460 | 1.1% |
| Lincoln, WA | 17,657 | 0.9% |
| Skamania, WA | 16,896 | 0.8% |
| Ferry, WA | 12,522 | 0.6% |
| Columbia, WA | 9,702 | 0.5% |
| Benewah, ID | 826 | 0.0% |
| Latah, ID | 248 | 0.0% |
| Cowlitz, WA | 81 | 0.0% |
Call Context
This area code covers multiple cities and communities across a broad region in Washington.
Nearby Area Codes
Area codes geographically closest to 509.
Other Area Codes in Washington
Area codes that also serve Washington, linked for easy comparison.
Frequently Asked Questions
Common questions about area code 509 and how phone numbering works.
Phone numbers are assigned based on where the number was originally provisioned, not the caller's current location. Mobile phones retain their number when users move, and businesses may use numbers from regions where they don't have a physical presence. VoIP services can also provision numbers from virtually any area code.
Yes, mobile phones can have numbers from any area code in the region they were activated. Wireless carriers assign numbers from available pools regardless of phone type. When users change carriers or move to new areas, they typically keep their original number, which may have a different area code than their current location.
Start by looking up the area code on this site to understand its general geographic region. For the specific number, options include using your carrier's caller ID features or checking public directories. If you suspect fraud, you can report it to the FTC. To file a complaint about robocalls or spoofed numbers, visit the FCC Consumer Complaint Center. You can also register your number with the National Do Not Call Registry to reduce unwanted calls. Keep in mind that caller ID can display any name the caller chooses to set.
While Washington is a prominent city in this area code's coverage, the code serves the broader surrounding region as well. Area codes are assigned geographically and typically cover multiple cities, towns, and communities beyond any single anchor city.
Yes, this is one of the original area codes established in 1947 when the North American Numbering Plan (NANP) was created. The initial set of area codes was designed to cover all of North America with a unified dialing system, and many of these original codes remain in use today, though some have been split or received overlays.
The estimated total population served by area code 509 is based on aggregated U.S. Census Bureau data for the counties within this area code. The population varies significantly between dense urban codes serving millions and rural codes covering smaller populations. You can find the specific population figure in the demographics section above.