FIPS code 28073 is Lamar County, Mississippi. With a population of 64,425 (2022 ACS estimate), it ranks #11 in Mississippi and #843 nationally. Lamar County is part of the Hattiesburg, MS. The state FIPS code for Mississippi is 28. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
28073
Population
64,425
2022 ACS · #843 nationally
Density
129.6/mi²
people per sq mile
Land Area
497
sq miles
Urban/Rural
Metro — under 250K population
RUCC 3
How This FIPS Code Works
The 5-digit FIPS code 28073 is formed by combining the 2-digit state identifier 28 (Mississippi) with the 3-digit county identifier 073. Together they uniquely identify Lamar County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 28073
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 28073.
Median Household Income
$67,972
ACS B19013_001E
Poverty Rate
16.9%
ACS B17001 (below poverty level)
Median Age
37.3
ACS B01002_001E
Metropolitan Area
Adjacent Counties (5)
Counties that share a border with Lamar County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 28073.
Federal Datasets Using Code 28073
FIPS code 28073 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 28073 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:073",
"in": "state:28",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Lamar County, Mississippi, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '28073';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '28'
AND county_fips = '073';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 28073 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "28",
county = "073",
year = 2022
)ZIP Codes in Lamar 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 Lamar County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 39475 | 82.8% |
| 39482 | 69.1% |
| 39402 | 55.9% |
| 39455 | 45.9% |
| 39429 | 2.7% |
| 39401 | 0.2% |