53033 FipsDecoder
24033 County FIPS Code

Prince George's County

Maryland · County seat: Upper Marlboro · Active county or equivalent

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FIPS code 24033 is Prince George's County, Maryland. With a population of 957,189 (2022 ACS estimate), it ranks #2 in Maryland and #54 nationally. Prince George's County is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV. The state FIPS code for Maryland is 24. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

24033

State FIPS

24

MD

Population

957,189

2022 ACS · #54 nationally

Density

1,983.0/mi²

people per sq mile

Land Area

483

sq miles

Urban/Rural

Metro — 1M+ population

RUCC 1

How This FIPS Code Works

24 033
24 = State FIPS (Maryland)
033 = County FIPS

The 5-digit FIPS code 24033 is formed by combining the 2-digit state identifier 24 (Maryland) with the 3-digit county identifier 033. Together they uniquely identify Prince George's County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 24033

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 24033.

Median Household Income

$97,935

ACS B19013_001E

Poverty Rate

9.6%

ACS B17001 (below poverty level)

Median Age

38.2

ACS B01002_001E

Metropolitan Area

Adjacent Counties (8)

Counties that share a border with Prince George's County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 24033.

Federal Datasets Using Code 24033

FIPS code 24033 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 24033 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 24033
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:033",
    "in":   "state:24",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Prince George's County, Maryland, income, pop, ...]
SQL — filtering by county FIPS 24033
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '24033';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '24'
  AND county_fips = '033';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 24033 is WRONG for this county
R — tidycensus 24033
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "24",
  county    = "033",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 24 (not 24) and 033 (not 33) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Prince George's 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 Prince George's County. Why FIPS ≠ ZIP →

ZIP Code % in county
20784 100.0%
20781 100.0%
20782 100.0%
20783 100.0%
20785 100.0%
20608 100.0%
20623 100.0%
20706 100.0%
20708 100.0%
20710 100.0%
20712 100.0%
20715 100.0%
20716 100.0%
20720 100.0%
20721 100.0%
20722 100.0%
20735 100.0%
20737 100.0%
20740 100.0%
20742 100.0%
20743 100.0%
20744 100.0%
20745 100.0%
20746 100.0%
20747 100.0%
20748 100.0%
20762 100.0%
20769 100.0%
20770 100.0%
20771 100.0%

Showing top 30 of 40 ZIP codes by residential address share.

Other Counties in Maryland