Pasco, WA GIS Map
Pasco is a city in Franklin County, Washington, with a population of about 77,100. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Franklin County
- Population
- 77,100
- Elevation
- 387 ft
- Coordinates
- 46.2396, -119.1006
- ZIP codes (2)
- 99301, 99302
- Land area
- 39 sq mi
- Time zone
- America/Los Angeles
About Pasco, WA
Pasco is a city in and the county seat of Franklin County, Washington, United States. The population was 77,108 at the 2020 census, and estimated at 81,724 in 2024. Pasco is one of three cities that make up Washington state's Tri-Cities region, a mid-sized metropolitan area of approximately 303,622 people.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Pasco
GIS Data for Pasco, WA
The Pasco map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Pasco without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Pasco Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
79,575
Households
24,748
Median household income
$85,586
Median age
30.3 years
Median home value
$376,300
Median gross rent
$1,227/mo
Owner-occupied homes
70.9%
Bachelor's degree or higher
21.4%
Below poverty level
12.6%
Land area
39 sq mi
Population density
2,042 / sq mi
County
ZIP codes in Pasco
Pasco Population Growth
Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).
2010 Census
59,781
April 2020 (estimates base)
77,345
July 2024 estimate
81,724
Change 2010-2020
+29.4%
Change 2020-2024
+5.7%
Photos of Pasco
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Pasco. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Pasco
GSA-managed federal properties in and around Pasco.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| National Marine Fisheries Service Office | 3305 E Commerce St, 99301 | Leased | 23,427 | Sep 2033 |
| Pasco Airport Terminal Bldg | 3601 N 20th Ave, 99301 | Leased | 1,788 | Mar 2037 |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Pasco
General soil map unit at the city center: Quincy-Hezel
Soil Properties
- Drainage class
- Excessively drained
- Hydrologic soil group
- A (high infiltration, low runoff)
- Available water storage (0–150 cm)
- 17.5 cm
- Typical slope
- 8%
- Flooding frequency
- None
Soil Components
- Quincy20%
Entisols · Xeric Torripsamments
- Quincy15%
Entisols · Xeric Torripsamments
- Quincy11%
Entisols · Xeric Torripsamments
- Hezel10%
Entisols · Xeric Torriorthents
- Quincy8%
Entisols · Xeric Torripsamments
- Hezel7%
Entisols · Xeric Torriorthents
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Pasco
30-year averages (1991–2020) from the Kennewick, Wa weather station, elevation 390 ft, 2 miles from the city center.
Warmest month
Jul · avg high 91°F
Coldest month
Jan · avg low 29°F
Annual precipitation
7.9 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 42 | 48 | 58 | 66 | 75 | 82 | 91 | 90 | 80 | 66 | 51 | 42 |
| Avg low °F | 29 | 31 | 36 | 42 | 50 | 56 | 62 | 61 | 53 | 43 | 35 | 30 |
| Precip. in | 1.13 | 0.79 | 0.66 | 0.61 | 0.84 | 0.58 | 0.21 | 0.17 | 0.26 | 0.67 | 0.87 | 1.08 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Pasco
FEMA National Risk Index ratings for Franklin County, compared with all U.S. counties.
Overall risk
Score 72.5 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- Heat WaveRelatively Moderate
- WildfireRelatively Low
- Inland FloodingRelatively Moderate
- EarthquakeRelatively Low
- Ice StormRelatively Moderate
- Volcanic ActivityVery Low
- Cold WaveRelatively Moderate
- LandslideVery Low
- LightningRelatively Low
- Winter WeatherRelatively Low
- HailRelatively Low
- Strong WindRelatively Low
- DroughtVery Low
- AvalancheVery Low
- TornadoVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Pasco FAQ
What county is Pasco in?
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Pasco, Washington is located in Franklin County.
What is the population of Pasco?
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Pasco has a population of about 77,100, making it the number 16 of the 53 Washington cities listed on GIS Map.
What is the elevation of Pasco?
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The elevation of Pasco is approximately 387 feet (118 meters) above sea level at the city center.
What ZIP codes are in Pasco?
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ZIP codes for Pasco include 99301, 99302.
What time zone is Pasco in?
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Pasco is in the Pacific Time zone (America/Los Angeles).
How far is Pasco from Olympia?
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Pasco is about 188 miles from Olympia, the capital of Washington, in a straight line.
How far is Pasco from Seattle?
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Pasco is about 179 miles from Seattle, the largest city in Washington listed on GIS Map, in a straight line.
What cities are near Pasco?
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Cities near Pasco include Kennewick, WA (3 miles); Richland, WA (9 miles); Hermiston, OR (29 miles); Walla Walla, WA (38 miles); Pendleton, OR (42 miles).
Local notes for Pasco, WA
Questions and local knowledge from people who know the area. Every note is read before it appears here.