FIPS code 01097 is Mobile County, Alabama. With a population of 413,878 (2022 ACS estimate), it ranks #2 in Alabama and #170 nationally. Mobile County is part of the Mobile, 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
01097
Population
413,878
2022 ACS · #170 nationally
Density
336.6/mi²
people per sq mile
Land Area
1,229
sq miles
Urban/Rural
Metro — 250K–1M population
RUCC 2
How This FIPS Code Works
The 5-digit FIPS code 01097 is formed by combining the 2-digit state identifier 01 (Alabama) with the 3-digit county identifier 097. Together they uniquely identify Mobile County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 01097
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 01097.
Median Household Income
$55,352
ACS B19013_001E
Poverty Rate
17.6%
ACS B17001 (below poverty level)
Median Age
38.2
ACS B01002_001E
Metropolitan Area
Adjacent Counties (5)
Counties that share a border with Mobile County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 01097.
Federal Datasets Using Code 01097
FIPS code 01097 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 01097 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:097",
"in": "state:01",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Mobile County, Alabama, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '01097';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '01'
AND county_fips = '097';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 1097 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "01",
county = "097",
year = 2022
)ZIP Codes in Mobile 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 Mobile County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 36695 | 100.0% |
| 36509 | 100.0% |
| 36512 | 100.0% |
| 36693 | 100.0% |
| 36505 | 100.0% |
| 36521 | 100.0% |
| 36523 | 100.0% |
| 36525 | 100.0% |
| 36528 | 100.0% |
| 36541 | 100.0% |
| 36544 | 100.0% |
| 36560 | 100.0% |
| 36568 | 100.0% |
| 36571 | 100.0% |
| 36572 | 100.0% |
| 36575 | 100.0% |
| 36582 | 100.0% |
| 36587 | 100.0% |
| 36602 | 100.0% |
| 36603 | 100.0% |
| 36604 | 100.0% |
| 36605 | 100.0% |
| 36606 | 100.0% |
| 36607 | 100.0% |
| 36608 | 100.0% |
| 36609 | 100.0% |
| 36610 | 100.0% |
| 36611 | 100.0% |
| 36612 | 100.0% |
| 36613 | 100.0% |
Showing top 30 of 39 ZIP codes by residential address share.