Bonneville County, Idaho
Bonneville County: county in Idaho, United States
About
Bonneville County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 104,234 and a population density of 21 people per km². After 9 years in 2019 county had an estimated population of 119,062 inhabitants. Its county seat is Idaho Falls. The county was created 115 years ago in 1911.
County Snapshot
Bonneville County at a glance
Bonneville County currently has 6 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
6
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Idaho counties
44
Open related pagesLargest city
Idaho FallsPopulation 62,888
Top linked places
Quick Facts about Bonneville County
| Population | 119,062 (2019) |
| Country | United States of America |
| State | Idaho (United States) |
| Area | 4923 km2 |
| Water as percent of area | 1.8% |
| Land as percent of area | 98.2% |
| Latitude & Longitude | 43.3877,-111.6149 |
| Named for | Benjamin Bonneville |
| Altitude | 6,335 feet / 1931 meters |
| Capital | Idaho Falls |
| Establishment | February 07, 1911 |
| Time Zone | America/Boise |
| Local time | 15:49:19 (22nd April 2026) |
| Density | 24 Pop. per km² as of 2019 |
| Population growth | 12.45% (2010-2019) |
| Weather | 46℉ Chance Light Rain 7-days weather |
Geography
Bonneville County is located at 43°23'16"N 111°36'54"W (43.3877300, -111.6149300). It has 7 neighbors: Bingham County, Caribou County, Jefferson County, Madison County, Teton County, Lincoln County and Teton County.
Bonneville County map
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The largest city of Bonneville County is Idaho Falls with a population of 62,888. Other cities include, Ammon population 17,115, Iona population 2,354, Ucon population 1,161 and Irwin population 247. See all Bonneville County cities & populated places.
Bonneville County Populated Places
Cities, towns, neighborhoods & other populated places in Bonneville County.
| City Name | Population | Title |
|---|---|---|
| Idaho Falls | 62,888 | The most populous city in Bonneville County, Idaho. |
| Ammon | 17,115 | City in Idaho, United States |
| Iona | 2,354 | City in Idaho, United States |
| Ucon | 1,161 | City in Bonneville County, Idaho, United States |
| Irwin | 247 | City in Bonneville County, Idaho, United States |
| Swan Valley | 245 | City in Bonneville County, Idaho, United States |
Weather
A chance of rain. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
7-Day ForecastOfficial website of Bonneville County
Official Website- Idaho Falls
Demographics
The population of Bonneville County increased by 12.45% in 9 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 104,234 | - | census |
| 2011 | 105,813 | 1.49% | estimation process |
| 2012 | 106,764 | 0.89% | estimation process |
| 2013 | 107,369 | 0.56% | estimation process |
| 2014 | 108,236 | 0.8% | estimation process |
| 2015 | 109,849 | 1.47% | estimation process |
| 2016 | 112,118 | 2.02% | estimation process |
| 2017 | 114,488 | 2.07% | estimation process |
| 2018 | 116,444 | 1.68% | estimation process |
| 2019 | 119,062 | 2.2% | estimation process |
People born in Bonneville County (1)
American politician and senator Mike Crapo was born in Bonneville County
Idaho Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Ada County | 481,587 | County in Idaho, United States |
| Canyon County | 229,849 | County in Idaho, United States |
| Boise | 228,959 | The capital of Idaho. |
| Kootenai County | 165,697 | County in Idaho, United States |
| Meridian | 114,161 | The most populous city in Ada County, Idaho. |
| Nampa | 99,277 | The most populous city in Canyon County, Idaho. |
| Bannock County | 87,808 | County in Idaho, United States |
| Twin Falls County | 86,878 | County in Idaho, United States |
| Idaho Falls | 62,888 | The most populous city in Bonneville County, Idaho. |
| Caldwell | 58,481 | The most populous city in Canyon County, Idaho. |
| Pocatello | 56,637 | The most populous city in Bannock County, Idaho. |
| Coeur d'Alene | 52,414 | A city in Kootenai County, Idaho. |
| Twin Falls | 50,197 | The most populous city in Twin Falls County, Idaho. |
| Bingham County | 46,811 | County in Idaho, United States |
| Bonner County | 45,739 | County in Idaho, United States |
| Nez Perce County | 40,408 | County in Idaho, United States |