• county
  • FIPS 24013
  • Largest town: Westminster

Carroll County, Maryland

Carroll County had 177,108 residents in the Census Vintage 2024 estimate, on 447.6 square miles of land. It ranks 9th of 24 in Maryland by population and 10th by land area.

Population
177,108
#9 of 24 in Maryland · #394 in US
Area
447.6 sq mi
#10 of 24 in Maryland · #2,279 in US
Density
396 / sq mi
#10 of 24 in Maryland · #348 in US
Median household income
$113,885
#6 of 24 in Maryland · #52 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Carroll County within Maryland. Pin: Annapolis.

Carroll County population, land area and income

Carroll County had 177,108 residents in the Census Vintage 2024 estimate, on 447.6 square miles of land. It ranks 9th of 24 in Maryland by population and 10th by land area. That works out to 395.7 people per square mile, 4.1 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Maryland has 111,399 residents; Carroll County is somewhat larger.

Its SAIPE 2023 median household income of $113,885 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

177,108

3144th1st

394th of 3,144 (US)

Land area

448 sq mi

3144th1st

2279th of 3,144 (US)

Density

395.7 / sq mi

3144th1st

348th of 3,144 (US)

Median household income

$113,885

3143rd1st

52nd of 3,143 (US)

Rank within Maryland (24)

Population

177,108

24th1st

9th of 24 (MD)

Land area

448 sq mi

24th1st

10th of 24 (MD)

Density

395.7 / sq mi

24th1st

10th of 24 (MD)

Median household income

$113,885

24th1st

6th of 24 (MD)

How Carroll County's population changed since 2020

Carroll County gained 4,198 residents between the July 2020 and July 2024 estimates, a rise of 2.4%. That ranks 8th of 24 in Maryland for growth. The median Maryland county changed by +2.1%, and the state as a whole by +1.4%.

Since the April 2020 estimates base, Carroll County recorded 7,452 births and 7,786 deaths, a natural change of -334. Net international migration added +1,072 and net domestic migration, people moving to or from other US counties, came to +3,546. The largest single component was domestic migration, which added 3,546 people.

172.9k2020174.3k2021175.6k2022176.7k2023177.1k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
7,452
Deaths
7,786
Net international migration
+1,072
Net domestic migration
+3,546
Change, July 2023 to July 2024
+373

Where Carroll County is

The Census internal point of Carroll County is at 39.563300, -77.015300. It sits in UTM zone 18N. The map shades Maryland's 24 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Carroll County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Carroll County

7 incorporated places of 1,000+ people have residents in Carroll County, 53,414 people together, or 30% of the county. Each figure counts only the part of the town inside Carroll County; towns marked "part" extend into another county. The largest is Westminster with 20,662.

  1. 01Westminster20,662
  2. 02Taneytown8,293
  3. 03Mount Airy (part)6,351
  4. 04Hampstead6,288
  5. 05Manchester5,440
  6. 06Sykesville4,622
  7. 07New Windsor1,758
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Carroll County

The Census 2024 county adjacency file lists 5 neighbors for Carroll County, including 2 across a state line. The most populous is Baltimore County, MD, with 852,425 residents. Distances run between Census internal points in a straight line.

Distance to Annapolis and the nearest big city

Annapolis is 49.2 miles SE of Carroll County's internal point in a straight line. The nearest place of 100,000 or more is Baltimore, MD (population 568,271), 28.3 miles away. The nearest place of 10,000 or more is Westminster, MD (population 20,662), 1.2 miles away.

Carroll County FIPS code

The FIPS code of Carroll County is 24013: state code 24 for Maryland plus county code 013. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $113,885.

Questions people ask

What is the population of Carroll County, Maryland?

The Census Vintage 2024 estimate for July 1, 2024 is 177,108. That is up 4,198 people (2.4%) from the July 2020 estimate of 172,910.

What is the FIPS code of Carroll County?

24013. The first two digits (24) are Maryland; the last three (013) identify the county.

What is the largest town in Carroll County?

Westminster, with 20,662 residents inside Carroll County in 2024.

Which counties border Carroll County?

5 county-equivalents border it in the Census 2024 adjacency file: Baltimore County, MD; York County, PA; Howard County, MD; Frederick County, MD; Adams County, PA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.