53033 FipsDecoder
01001 County FIPS Code

Autauga County

Alabama · County seat: Prattville · Active county or equivalent

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FIPS code 01001 is Autauga County, Alabama. With a population of 58,761 (2022 ACS estimate), it ranks #24 in Alabama and #893 nationally. Autauga County is part of the Montgomery, 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

01001

State FIPS

01

AL

Population

58,761

2022 ACS · #893 nationally

Density

98.9/mi²

people per sq mile

Land Area

594

sq miles

Urban/Rural

Metro — 250K–1M population

RUCC 2

How This FIPS Code Works

01 001
01 = State FIPS (Alabama)
001 = County FIPS

The 5-digit FIPS code 01001 is formed by combining the 2-digit state identifier 01 (Alabama) with the 3-digit county identifier 001. Together they uniquely identify Autauga County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 01001

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 01001.

Median Household Income

$68,315

ACS B19013_001E

Poverty Rate

11.4%

ACS B17001 (below poverty level)

Median Age

39.0

ACS B01002_001E

Metropolitan Area

Adjacent Counties (5)

Counties that share a border with Autauga County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 01001.

Federal Datasets Using Code 01001

FIPS code 01001 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 01001 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.

Census ACS API — Python 01001
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:001",
    "in":   "state:01",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Autauga County, Alabama, income, pop, ...]
SQL — filtering by county FIPS 01001
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '01001';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '01'
  AND county_fips = '001';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 1001 is WRONG for this county
R — tidycensus 01001
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "01",
  county    = "001",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 01 (not 1) and 001 (not 1) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Autauga 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 Autauga County. Why FIPS ≠ ZIP →

ZIP Code % in county
36003 100.0%
36008 100.0%
36067 100.0%
36749 83.5%
36006 75.6%
36066 71.0%
36051 64.5%
36022 44.9%
36758 31.0%
36703 25.5%
36091 15.2%

Other Counties in Alabama