Zip Code 98597
Yelm, Washington — Thurston County
📍 ZIP code 98597 is in Yelm, Thurston County, Washington.
ZIP code 98597 is located in Yelm, Thurston County, Washington. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 26,431. The area code for ZIP code 98597 is 360.
Quick Answer
Zip code 98597 is in Yelm, Washington (Thurston County). It has a population of 26,431, median household income of $92,120, and median home value of $423,200.
Population
26,431
Income
$92,120
Home Value
$423,200
Climate
78°F / 33°F
About Zip Code 98597
Zip code 98597 is located in Yelm, Washington, within Thurston County. Home to approximately 26,431 residents, this area sits at an elevation of 576 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 360.
The median household income is $92,120 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $423,200, and the cost of living index is 128 (28% above the national average of 100).
Summers average a high of 78°F while winters drop to 33°F. The area receives about 51 in of rain and 4 in of snow annually. The zip code covers 111.6 square miles of land area and 3.7 square miles of water.
Key Statistics
26,431
$92,120
$423,200
Pacific (PST/PDT)
360
576 ft
111.6 sq mi
36.2
10,108
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Compare With Nearby Zip Codes
| Metric | 98597 | 98576 | 98580 | 98533 | 98589 | 98513 |
|---|---|---|---|---|---|---|
| City | Yelm, WA | Rainier, WA | Roy, WA | Cinebar, WA | Centralia, WA | Lacey, WA |
| Population | 26,431 | 5,063 | 11,472 | 774 | 7,296 | 37,953 |
| Median Income | $92,120 | $101,336 | $110,428 | $35,887 | $89,119 | $108,270 |
| Home Value | $423,200 | $400,000 | $485,400 | $352,100 | $408,600 | $443,300 |
| Cost of Living | 128 | 125 | 154 | 92 | 127 | 137 |
| Median Age | 36.2 | 41.6 | 45.5 | 61 | 45.6 | 38.1 |
Cost of Living
100 = National Average. Yelm's cost of living is 28% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.6x
Demographics
Zip code 98597 has a population of 26,431 people with a median age of 36.2. There are 10,108 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Yelm (98597) population trend from 2010 to 2024
↓ -10.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
78°F
33°F
51 in
4 in
Yelm experiences mild summers with average highs around 78°F. Winters are mild with lows averaging 33°F. The area receives about 4 in of snow per year.
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Housing & Economy
Median Home Value
$423,200
Median Household Income
$92,120
With 10,108 housing units across 111.6 square miles, 98597 has a housing density of 91 units per square mile. The home price-to-income ratio is 4.6x.
Location & Geography
Latitude
46.8443°
Longitude
-122.4929°
Land Area
111.6 sq mi
Water Area
3.7 sq mi
Nearby Zip Codes
Zip codes closest to 98597 (Yelm, WA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 98597's $92,120. A way to compare Yelm to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 98597 (Yelm, WA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Yelm, Washington?
Yelm, Washington uses zip code 98597.
What county is zip code 98597 in?
Zip code 98597 is located in Thurston County, Washington.
What is the population of zip code 98597?
The population of zip code 98597 is 26,431 with a median age of 36.2.
Is 98597 in Yelm, Washington?
Yes, zip code 98597 is in Yelm, Thurston County, Washington. The area code is 360.
Frequently Asked Questions
What city is zip code 98597 in?
Zip code 98597 is in Yelm, Washington. It is part of Thurston County and uses the Pacific (PST/PDT) timezone.
What is zip code 98597?
Zip code 98597 is a U.S. postal code in Yelm, Washington (Thurston County). It has a population of 26,431 and covers 111.6 square miles.
What is the population of zip code 98597?
The population of zip code 98597 (Yelm, WA) is 26,431 with a median age of 36.2. There are approximately 10,108 housing units in this area.
What is the median income in zip code 98597?
The median household income in zip code 98597 (Yelm, WA) is $92,120 per year. The cost of living index is 128 (100 = national average).
What is the average home price in zip code 98597?
The median home value in zip code 98597 (Yelm, WA) is $423,200. The cost of living index is 128 compared to the national average of 100.
What county is zip code 98597 in?
Zip code 98597 is located in Thurston County, Washington. The primary city is Yelm.
What is the area code for zip code 98597?
Zip code 98597 in Yelm, WA uses area code 360. It is located in the Pacific (PST/PDT) timezone.
Is zip code 98597 a good place to live?
Zip code 98597 (Yelm, WA) has a cost of living index of 128 (100 = national average), a median household income of $92,120, and median home values of $423,200. The median age is 36.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 98597?
The cost of living index for zip code 98597 (Yelm, WA) is 128, where 100 represents the national average. This area is above the national average. Median home value: $423,200.
What schools serve zip code 98597?
Zip code 98597 in Yelm, Washington is served by the local school district of Thurston County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.