Townapedia
Sunnyside WA, September 2015
Sunnyside WA, September 2015 · Orange Suede Sofa, CC BY-SA 3.0
Sunnyside Post Office Front Face
Sunnyside Post Office Front Face · Shy salmon, CC BY-SA 3.0
Sunnyside Post Office Waiting Area
Sunnyside Post Office Waiting Area · Shy salmon, CC BY-SA 3.0
Sunnyside Post Office PO Boxes
Sunnyside Post Office PO Boxes · Shy salmon, CC BY-SA 3.0
Sunnyside Post Office Street View
Sunnyside Post Office Street View · Shy salmon, CC BY-SA 3.0
Sunnyside Post Office Stairs
Sunnyside Post Office Stairs · Shy salmon, CC BY-SA 3.0

Sunnyside, Washington

Sunnyside is a city of 16,277 people in Yakima County, Washington, founded in 1902.

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Population16,277 -1.7% since 2019
Elevation745 ft 227 m
Founded1902
Land area7.6 sq mi
ZIP code98944
Nearest airportYakima Air Terminal (YKM) 31 mi

Why visit Sunnyside

Townapedia lists 1 museum or landmark, 10 parks and trails, 37 places to eat, 7 places to stay and 3 attractions in and around town.

Highlights include Grand Cinemas, Harrison Hill, Centennial Square and Central Park.

July is the warmest month, with average highs of 88°F; December lows average 22°F.

About Sunnyside

Sunnyside is a city in Yakima County, Washington, United States. The population was 16,375 at the 2020 census, making it the second-most populous city in Yakima County.

From the Wikipedia article Sunnyside, Washington (this version), under CC BY-SA 4.0.

Things to do3

Grand Cinemas

Cinema and theater · 1.7 mi

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Harrison Hill

Scenic view · 1.3 mi

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Peanut Hump

Scenic view · 2.6 mi

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Museums and landmarks1

Sunnyside Museum

Museum · 0.6 mi

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Parks, trails and playgrounds10

Centennial Square

Park · 0.7 mi

sunrise-sunset

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Central Park

Park · 0.7 mi

sunrise-sunset

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Denny-Blaine Park

Park · 0.8 mi

sunrise-sunset

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Kiwanis Youth Park

Park · 1.2 mi

sunrise-sunset

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South Hill Park

Park · 0.9 mi

sunrise-sunset

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Sunnyview Park

Park · 2.4 mi

sunrise-sunset

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Tina Knoth Soccer Park

Park · 1.1 mi

sunrise-sunset

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Upland Park

Park · 1.6 mi

sunrise-sunset

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Veterans' Park

Park · 0.6 mi

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Restaurants and cafes37

Varietal Beer Company

Bar and pub · 0.7 mi

416 East Edison Avenue, Sunnyside

Tu-Sa 12:00-21:00; Su 12:00-18:00

Open in Google Maps · +1-509-515-2222

El Charrito Mexican Restaurant

Restaurant · Mexican · 0.9 mi

Mo-Su 10:00-21:00

Open in Google Maps · +1-509-836-2040

China Wok Family Restaurant

Restaurant · Chicken · 1.0 mi

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Denny's

Diner · American · 1.4 mi

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Dutch Bros. Coffee

Cafe · Coffee Shop · 0.9 mi

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El Valle Family Mexican Restaurant

Restaurant · Mexican · 1.1 mi

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Golden Pheasant Restaurant

Restaurant · Chinese · 0.6 mi

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Mariscos Santa Maria

Restaurant · Seafood · 0.6 mi

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Panda Garden

Restaurant · Chinese · 1.4 mi

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Restaurant Colima

Restaurant · Mexican · 0.9 mi

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Restaurant Los Carrizos

Restaurant · Mexican

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Sakura Teriyaki & Sushi

Restaurant · Asian · 0.8 mi

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25 more on the map.

History

Up through the early portion of the 19th century, the portion of the Yakima Valley where Sunnyside is now located was inhabited by the "Taptat-ħlama" (or ″People at the rapids"). These people hunted and fished along Yakima River from the mouth of Satus Creek (contained in present-day Satus immediately southwest of Sunnyside) to present Kiona, with a key fishery at near present-day Prosser.

Several tribes in the region were relocated onto the Yakama Indian Reservation following the 1855 signing of a treaty with the federal government. However, the Yakima War lingered until 1858, with Chief Kamiakin fighting on until the Battle of Four Lakes in 1858.

The modern settlement of Sunnyside was founded by Walter Granger in 1893. The name was coined by a merchant named W. H. Cline. Granger was involved in the financing and construction of the Sunnyside Canal which would have allowed Yakima River water to irrigate the area. However, due to the Panic of 1893, Granger's creditors foreclosed on the canal, and the town's population dwindled to seven families. By the end of 1901, the population had doubled, finally exceeding 300 people. The site contained "1 bank, 11 stores, 3 hotels, 1 newspaper [the Sunnyside Sun, still publishing in 2020], 2 blacksmith shops, 2 livery barns, 3 churches, and a large and growing school".

From the History section of Sunnyside, Washington on Wikipedia, under CC BY-SA 4.0.

Where to stay7

Churches and places of worship24

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Shopping10

Gas and EV charging8

Schools, colleges and libraries19

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Healthcare5

Map of Sunnyside

124 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 1.0 in of rainFebruary: 0.7 in of rainMarch: 0.5 in of rainApril: 0.6 in of rainMay: 0.8 in of rainJune: 0.6 in of rainJuly: 0.1 in of rainAugust: 0.3 in of rainSeptember: 0.4 in of rainOctober: 0.7 in of rainNovember: 0.8 in of rainDecember: 1.2 in of rainJanuary: 38°FFebruary: 45°FMarch: 55°FApril: 63°FMay: 73°FJune: 79°FJuly: 88°FAugust: 86°FSeptember: 78°FOctober: 64°FNovember: 48°FDecember: 37°FJanuary: 23°FFebruary: 24°FMarch: 30°FApril: 36°FMay: 44°FJune: 49°FJuly: 54°FAugust: 52°FSeptember: 44°FOctober: 35°FNovember: 27°FDecember: 22°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRain
Jan38°F23°F1.0 in
Feb45°F24°F0.7 in
Mar55°F30°F0.5 in
Apr63°F36°F0.6 in
May73°F44°F0.8 in
Jun79°F49°F0.6 in
Jul88°F54°F0.1 in
Aug86°F52°F0.3 in
Sep78°F44°F0.4 in
Oct64°F35°F0.7 in
Nov48°F27°F0.8 in
Dec37°F22°F1.2 in

U.S. Climate Normals 1991-2020 for Sunnyside Hcn (1 mi away), NOAA NCEI.

People and cost of living

$60,923median household income
$240,700median home value
$1,026median monthly rent
27.1median age
9.8%of adults have a bachelor's degree or higher
55.0%of homes are owner-occupied
24.6 minaverage commute
Age of residents
Under 1839%18 to 3422%35 to 6429%65 and over10%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Yakima County has had 28 federal disaster declarations since 2000, most often for fires.

  • 2026-08-03: Wildfires (Fire)
  • 2026-07-26: Signal Peak Fire (Fire)
  • 2026-07-26: Ransier Fire (Fire)
  • 2026-04-07: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Flood)
  • 2025-12-12: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Flood)
  • 2024-07-26: Retreat Fire (Fire)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Yakima Air Terminal (YKM) is the nearest airport with scheduled flights listed in OpenStreetMap, 31 miles away.

  • Outlook 4 mi west, about 7 min by car
  • Grandview 7 mi southeast, about 11 min by car
  • Mabton 7 mi south, about 12 min by car
  • Granger 9 mi west, about 15 min by car
  • Prosser 14 mi southeast, about 22 min by car
  • Richland 34 mi east, about 55 min by car
  • Kennewick 40 mi east, about 1 h by car
  • Pasco 42 mi east, about 1 h 15 min by car
  • Hermiston 48 mi southeast, about 1 h 15 min by car
  • Ellensburg 54 mi northwest, about 1 h 30 min by car

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.