Bonneville County
Idaho · County seat: Idaho Falls · Active county or equivalent
FIPS code 16019 is Bonneville County, Idaho. With a population of 124,490 (2022 ACS estimate), it ranks #4 in Idaho and #510 nationally. Bonneville County is part of the Idaho Falls, ID. The state FIPS code for Idaho is 16. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
16019
Population
124,490
2022 ACS · #510 nationally
Density
66.7/mi²
people per sq mile
Land Area
1,866
sq miles
Urban/Rural
Metro — under 250K population
RUCC 3
How This FIPS Code Works
The 5-digit FIPS code 16019 is formed by combining the 2-digit state identifier 16 (Idaho) with the 3-digit county identifier 019. Together they uniquely identify Bonneville County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 16019
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 16019.
Median Household Income
$73,103
ACS B19013_001E
Poverty Rate
9.5%
ACS B17001 (below poverty level)
Median Age
33.2
ACS B01002_001E
Metropolitan Area
Adjacent Counties (7)
Counties that share a border with Bonneville County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 16019.
Federal Datasets Using Code 16019
FIPS code 16019 appears as the county identifier in the following federal datasets. Analysts joining data across these sources use this code as the common geographic key.
Using FIPS Code 16019 in Code
Common patterns for querying federal datasets by this county's FIPS code. The leading zeros are significant — always treat FIPS codes as strings, not integers.
import requests
url = "https://api.census.gov/data/2022/acs/acs5"
params = {
"get": "NAME,B19013_001E,B01003_001E",
"for": "county:019",
"in": "state:16",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Bonneville County, Idaho, income, pop, ...]
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '16019';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '16'
AND county_fips = '019';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 16019 is WRONG for this county
library(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "16",
county = "019",
year = 2022
)
ZIP Codes in Bonneville County
ZIP codes do not align perfectly with county boundaries — a single ZIP code can span multiple counties, and a county can contain parts of many ZIP codes. The ratios below (from the Census 2020 ZCTA relationship file) show the land area share of each ZCTA that falls within Bonneville County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 83454 | 100.0% |
| 83404 | 100.0% |
| 83406 | 100.0% |
| 83427 | 100.0% |
| 83428 | 100.0% |
| 83449 | 100.0% |
| 83401 | 99.8% |
| 83402 | 97.1% |
| 83443 | 95.2% |
| 83120 | 71.1% |
| 83285 | 68.5% |
| 83442 | 28.8% |
| 83444 | 0.8% |
| 83274 | 0.5% |