Fulton County
Illinois · County seat: Lewistown · Active county or equivalent
FIPS code 17057 is Fulton County, Illinois. With a population of 33,691 (2022 ACS estimate), it ranks #44 in Illinois and #1367 nationally. Fulton County is part of the Canton, IL. The state FIPS code for Illinois is 17. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
17057
Population
33,691
2022 ACS · #1367 nationally
Density
38.9/mi²
people per sq mile
Land Area
866
sq miles
Urban/Rural
Nonmetro — urban 2.5K–19.9K, adjacent to metro
RUCC 6
How This FIPS Code Works
The 5-digit FIPS code 17057 is formed by combining the 2-digit state identifier 17 (Illinois) with the 3-digit county identifier 057. Together they uniquely identify Fulton County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 17057
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 17057.
Median Household Income
$57,223
ACS B19013_001E
Poverty Rate
13.4%
ACS B17001 (below poverty level)
Median Age
43.6
ACS B01002_001E
Metropolitan Area
Adjacent Counties (7)
Counties that share a border with Fulton County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 17057.
Federal Datasets Using Code 17057
FIPS code 17057 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 17057 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:057",
"in": "state:17",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Fulton County, Illinois, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '17057';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '17'
AND county_fips = '057';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 17057 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "17",
county = "057",
year = 2022
)ZIP Codes in Fulton 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 Fulton County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 61543 | 100.0% |
| 61427 | 100.0% |
| 61431 | 100.0% |
| 61432 | 100.0% |
| 61433 | 100.0% |
| 61441 | 100.0% |
| 61519 | 100.0% |
| 61520 | 100.0% |
| 61524 | 100.0% |
| 61542 | 100.0% |
| 61563 | 100.0% |
| 61477 | 100.0% |
| 61553 | 100.0% |
| 61501 | 100.0% |
| 61482 | 88.2% |
| 61459 | 84.6% |
| 61544 | 70.4% |
| 61531 | 62.9% |
| 61415 | 62.8% |
| 61484 | 54.0% |
| 62644 | 32.1% |
| 61533 | 17.1% |
| 61474 | 6.5% |
| 61569 | 1.7% |