FIPS code 19017 is Bremer County, Iowa. With a population of 25,012 (2022 ACS estimate), it ranks #26 in Iowa and #1642 nationally. Bremer County is part of the Waterloo-Cedar Falls, IA. The state FIPS code for Iowa is 19. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
19017
Population
25,012
2022 ACS · #1642 nationally
Density
57.4/mi²
people per sq mile
Land Area
435
sq miles
Urban/Rural
Metro — under 250K population
RUCC 3
How This FIPS Code Works
The 5-digit FIPS code 19017 is formed by combining the 2-digit state identifier 19 (Iowa) with the 3-digit county identifier 017. Together they uniquely identify Bremer County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 19017
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 19017.
Median Household Income
$84,727
ACS B19013_001E
Poverty Rate
6.6%
ACS B17001 (below poverty level)
Median Age
38.9
ACS B01002_001E
Metropolitan Area
Adjacent Counties (6)
Counties that share a border with Bremer County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 19017.
Federal Datasets Using Code 19017
FIPS code 19017 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 19017 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:017",
"in": "state:19",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Bremer County, Iowa, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '19017';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '19'
AND county_fips = '017';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 19017 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "19",
county = "017",
year = 2022
)ZIP Codes in Bremer 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 Bremer County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 50668 | 100.0% |
| 50622 | 100.0% |
| 50676 | 100.0% |
| 50631 | 100.0% |
| 50677 | 96.9% |
| 50666 | 76.0% |
| 50647 | 62.0% |
| 50674 | 61.5% |
| 50629 | 29.4% |
| 50630 | 10.2% |
| 50645 | 6.8% |
| 50658 | 4.2% |
| 50670 | 1.8% |