53033 FipsDecoder
24045 County FIPS Code

Wicomico County

Maryland · County seat: Salisbury · Active county or equivalent

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FIPS code 24045 is Wicomico County, Maryland. With a population of 103,815 (2022 ACS estimate), it ranks #14 in Maryland and #585 nationally. Wicomico County is part of the Salisbury, MD. 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

24045

State FIPS

24

MD

Population

103,815

2022 ACS · #585 nationally

Density

277.3/mi²

people per sq mile

Land Area

374

sq miles

Urban/Rural

Metro — under 250K population

RUCC 3

How This FIPS Code Works

24 045
24 = State FIPS (Maryland)
045 = County FIPS

The 5-digit FIPS code 24045 is formed by combining the 2-digit state identifier 24 (Maryland) with the 3-digit county identifier 045. Together they uniquely identify Wicomico County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 24045

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 24045.

Median Household Income

$69,421

ACS B19013_001E

Poverty Rate

13.8%

ACS B17001 (below poverty level)

Median Age

36.1

ACS B01002_001E

Metropolitan Area

Adjacent Counties (4)

Counties that share a border with Wicomico County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 24045.

Federal Datasets Using Code 24045

FIPS code 24045 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 24045 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 24045
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:045",
    "in":   "state:24",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Wicomico County, Maryland, income, pop, ...]
SQL — filtering by county FIPS 24045
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '24045';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '24'
  AND county_fips = '045';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 24045 is WRONG for this county
R — tidycensus 24045
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "24",
  county    = "045",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 24 (not 24) and 045 (not 45) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
21875 100.0%
21861 100.0%
21865 100.0%
21801 100.0%
21810 100.0%
21814 100.0%
21826 100.0%
21830 100.0%
21837 100.0%
21840 100.0%
21849 100.0%
21850 100.0%
21856 100.0%
21874 99.5%
21804 77.6%
21822 49.9%

Other Counties in Maryland