FIPS code 19071 is Fremont County, Iowa. With a population of 6,639 (2022 ACS estimate), it ranks #93 in Iowa and #2759 nationally. 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
19071
Population
6,639
2022 ACS · #2759 nationally
Density
13.0/mi²
people per sq mile
Land Area
511
sq miles
Urban/Rural
Nonmetro — rural, adjacent to metro
RUCC 8
How This FIPS Code Works
The 5-digit FIPS code 19071 is formed by combining the 2-digit state identifier 19 (Iowa) with the 3-digit county identifier 071. Together they uniquely identify Fremont County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 19071
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 19071.
Median Household Income
$69,375
ACS B19013_001E
Poverty Rate
7.5%
ACS B17001 (below poverty level)
Median Age
46.2
ACS B01002_001E
Adjacent Counties (6)
Counties that share a border with Fremont County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 19071.
Federal Datasets Using Code 19071
FIPS code 19071 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 19071 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:071",
"in": "state:19",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Fremont County, Iowa, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '19071';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '19'
AND county_fips = '071';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 19071 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "19",
county = "071",
year = 2022
)ZIP Codes in Fremont 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 Fremont County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 51654 | 100.0% |
| 51639 | 100.0% |
| 51648 | 100.0% |
| 51649 | 100.0% |
| 51650 | 100.0% |
| 51652 | 100.0% |
| 51640 | 81.9% |
| 51653 | 74.6% |
| 51645 | 57.5% |
| 51601 | 37.3% |
| 51647 | 24.8% |