Townapedia
Post Office in Hamilton City, California-L1003166
Post Office in Hamilton City, California-L1003166 · Frank Schulenburg, CC BY-SA 4.0
Holly Sugar Plant, Hamilton City (2024)-L1005465
Holly Sugar Plant, Hamilton City (2024)-L1005465 · Frank Schulenburg, CC BY-SA 4.0
Holly Sugar Plant, Hamilton City (2024)-L1005471
Holly Sugar Plant, Hamilton City (2024)-L1005471 · Frank Schulenburg, CC BY-SA 4.0
Hamilton City tour-stop on a non-engineered levee built in 1906 (14161744908)
Hamilton City tour-stop on a non-engineered levee built in 1906 (14161744908) · U.S. Army Corps of Engineers Sacramento District, Public domain
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilton City vicinity (Glenn County, California)
Gianella Bridge, Spanning Sacramento River at State Highway 32, Hamilton City vicinity (Glenn County, California) · Pete Asano, Photographer, Public domain
Maj. Gen. John Peabody greets U.S. Rep. John Garamendi (14347550294)
Maj. Gen. John Peabody greets U.S. Rep. John Garamendi (14347550294) · U.S. Army Corps of Engineers Sacramento District, Public domain

Hamilton City, California

Hamilton City is a community of 2,267 people in Glenn County, California, founded in 1906.

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Population2,267 +7.3% since 2019
Elevation151 ft 46 m
Founded1906
Land area0.4 sq mi
ZIP code95951
Nearest airportChico Municipal Airport (CIC) 9 mi

Why visit Hamilton City

Townapedia lists 1 park or trail, 1 place to eat and 2 attractions in and around town.

Highlights include Gianella Bridge.

July is the warmest month, with average highs of 94°F; December lows average 37°F.

About Hamilton City

Hamilton City (formerly, Hamilton) is a census-designated place (CDP) in Glenn County, California, United States. The population was 2,263 at the 2020 census, up from 1,759 at the 2010 census. Hamilton City is located 9.5 miles (15 km) east of Orland, and 10 miles west of Chico at an elevation of 151 feet (46 m). The community is inside area code 530.

From the Wikipedia article Hamilton City, California (this version), under CC BY-SA 4.0.

Things to do2

Gianella Bridge

Bridge · National Register of Historic Places · 1.0 mi

Bridge in California, United States, listed on National Register of Historic Places

Open in Google Maps · Wikipedia

Irving Finch River Access

Scenic view · 0.9 mi

Open in Google Maps

Parks, trails and playgrounds1

Hamilton City Park

Park

Open in Google Maps

Restaurants and cafes1

Subway

Fast food · Sandwich

601 6th Street, Hamilton City

06:00-22:00

Open in Google Maps · +1 530-826-3535

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Churches and places of worship2

Saint Mary Catholic Church

Church · Roman Catholic

400 Los Robles Avenue, Hamilton City

Open in Google Maps · +1 530-865-4550

Evangelical Free Church of Hamilton City

Church

Open in Google Maps

History

The town began in 1905 with the founding of a large sugar beet processing plant, completed the following year by James Hamilton and the Alta California Sugar Beet Company (which changed its name in 1908 to Sacramento Valley Sugar Company). The plant later belonged to Holly Sugar Corporation and is known to this day as the Holly Sugar Plant. Holly Sugar was sold in 1936 to Spreckels Sugar Company and, in turn, Spreckels was later purchased by Imperial Sugar. The sugar plant closed in 2006, and in 2021 was acquired and renovated by Nutrien Company, a fertilizer producer.

The first post office at Hamilton City opened in 1906. As the town's population grew, to make room for development the local cemetery was moved to a new location about 10 miles north of Artois, California.

From the History section of Hamilton City, California on Wikipedia, under CC BY-SA 4.0.

Schools, colleges and libraries9

Map of Hamilton City

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

Climate by month

40°60°80°100°January: 4.5 in of rainFebruary: 4.1 in of rainMarch: 2.8 in of rainApril: 1.4 in of rainMay: 1.1 in of rainJune: 0.4 in of rainJuly: 0.0 in of rainAugust: 0.1 in of rainSeptember: 0.2 in of rainOctober: 0.9 in of rainNovember: 2.0 in of rainDecember: 3.8 in of rainJanuary: 57°FFebruary: 62°FMarch: 67°FApril: 73°FMay: 81°FJune: 89°FJuly: 94°FAugust: 93°FSeptember: 90°FOctober: 80°FNovember: 65°FDecember: 56°FJanuary: 38°FFebruary: 40°FMarch: 43°FApril: 47°FMay: 53°FJune: 60°FJuly: 63°FAugust: 61°FSeptember: 58°FOctober: 51°FNovember: 42°FDecember: 37°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan57°F38°F4.5 in0.0 in
Feb62°F40°F4.1 in0.0 in
Mar67°F43°F2.8 in0.0 in
Apr73°F47°F1.4 in0.0 in
May81°F53°F1.1 in0.0 in
Jun89°F60°F0.4 in0.0 in
Jul94°F63°F0.0 in0.0 in
Aug93°F61°F0.1 in0.0 in
Sep90°F58°F0.2 in0.0 in
Oct80°F51°F0.9 in0.0 in
Nov65°F42°F2.0 in0.0 in
Dec56°F37°F3.8 in0.0 in

U.S. Climate Normals 1991-2020 for Orland Hcn (10 mi away), NOAA NCEI.

People and cost of living

$65,833median household income
$302,800median home value
$903median monthly rent
28.2median age
4.1%of adults have a bachelor's degree or higher
61.2%of homes are owner-occupied
25.1 minaverage commute
Age of residents
Under 1829%18 to 3432%35 to 6424%65 and over14%

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

Disaster history

Glenn County has had 10 federal disaster declarations since 2000, most often for floods.

  • 2024-04-13: Severe Winter Storms, Tornadoes, Flooding, Landslides, And Mudslides (Severe Storm)
  • 2023-04-03: Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides (Severe Storm)
  • 2023-03-10: Severe Winter Storms, Flooding, Landslides, And Mudslides (Flood)
  • 2023-01-14: Severe Winter Storms, Flooding, Landslides, And Mudslides (Flood)
  • 2023-01-09: Severe Winter Storms, Flooding, And Mudslides (Flood)
  • 2020-03-22: Covid-19 Pandemic (Biological)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Chico Municipal Airport (CIC) is the nearest airport with scheduled flights listed in OpenStreetMap, 9 miles away.

  • Chico 10 mi east, about 17 min by car
  • Butte Valley 20 mi east, about 32 min by car
  • Forest Ranch 21 mi northeast, about 34 min by car
  • Biggs 28 mi southeast, about 45 min by car
  • Oroville 29 mi southeast, about 47 min by car
  • Red Bluff 32 mi north, about 52 min by car
  • Yuba City 47 mi southeast, about 1 h 15 min by car
  • Marysville 47 mi southeast, about 1 h 15 min by car
  • Linda 50 mi southeast, about 1 h 15 min by car
  • Olivehurst 52 mi southeast, 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.