FIPS code 01083 is Limestone County, Alabama. With a population of 104,199 (2022 ACS estimate), it ranks #12 in Alabama and #582 nationally. Limestone County is part of the Huntsville, AL. The state FIPS code for Alabama is 01. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
01083
Population
104,199
2022 ACS · #582 nationally
Density
186.1/mi²
people per sq mile
Land Area
560
sq miles
Urban/Rural
Metro — 250K–1M population
RUCC 2
How This FIPS Code Works
The 5-digit FIPS code 01083 is formed by combining the 2-digit state identifier 01 (Alabama) with the 3-digit county identifier 083. Together they uniquely identify Limestone County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 01083
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 01083.
Median Household Income
$80,146
ACS B19013_001E
Poverty Rate
11.2%
ACS B17001 (below poverty level)
Median Age
40.2
ACS B01002_001E
Metropolitan Area
Adjacent Counties (6)
Counties that share a border with Limestone County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 01083.
Federal Datasets Using Code 01083
FIPS code 01083 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 01083 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:083",
"in": "state:01",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Limestone County, Alabama, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '01083';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '01'
AND county_fips = '083';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 1083 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "01",
county = "083",
year = 2022
)ZIP Codes in Limestone 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 Limestone County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 35671 | 100.0% |
| 35611 | 100.0% |
| 35613 | 100.0% |
| 35647 | 100.0% |
| 35649 | 100.0% |
| 35615 | 100.0% |
| 35620 | 100.0% |
| 35614 | 98.3% |
| 35756 | 81.5% |
| 35739 | 55.5% |
| 35749 | 29.8% |
| 35610 | 29.5% |
| 35773 | 21.8% |
| 35757 | 3.4% |
| 35652 | 2.4% |