• county
  • FIPS 24027

Howard County, Maryland

Howard County had 339,668 residents in the Census Vintage 2024 estimate, on 251.0 square miles of land. It ranks 6th of 24 in Maryland by population and 22nd by land area.

Population
339,668
#6 of 24 in Maryland · #218 in US
Area
251.0 sq mi
#22 of 24 in Maryland · #2,909 in US
Density
1,354 / sq mi
#6 of 24 in Maryland · #120 in US
Median household income
$140,113
#1 of 24 in Maryland · #10 in US

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

Howard County within Maryland. Pin: Annapolis.

Howard County population, land area and income

Howard County had 339,668 residents in the Census Vintage 2024 estimate, on 251.0 square miles of land. It ranks 6th of 24 in Maryland by population and 22nd by land area. That works out to 1,353.5 people per square mile, 14.1 times the US average of 96.3, and in the top tenth nationally.

The median county-equivalent in Maryland has 111,399 residents, so Howard County is 3.0 times that size.

Its SAIPE 2023 median household income of $140,113 is the 10th highest among 3,143 counties with an estimate.

National rank among 3,144

Population

339,668

3144th1st

218th of 3,144 (US)

Land area

251 sq mi

3144th1st

2909th of 3,144 (US)

Density

1,353.5 / sq mi

3144th1st

120th of 3,144 (US)

Median household income

$140,113

3143rd1st

10th of 3,143 (US)

Rank within Maryland (24)

Population

339,668

24th1st

6th of 24 (MD)

Land area

251 sq mi

24th1st

22nd of 24 (MD)

Density

1,353.5 / sq mi

24th1st

6th of 24 (MD)

Median household income

$140,113

24th1st

1st of 24 (MD)

How Howard County's population changed since 2020

Howard County gained 6,847 residents between the July 2020 and July 2024 estimates, a rise of 2.1%. That ranks 13th 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, Howard County recorded 13,506 births and 8,629 deaths, a natural change of +4,877. Net international migration added +7,252 and net domestic migration, people moving to or from other US counties, came to -5,199. The largest single component was international migration, which added 7,252 people.

332.8k2020335.4k2021336.4k2022337.3k2023339.7k2024
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
13,506
Deaths
8,629
Net international migration
+7,252
Net domestic migration
-5,199
Change, July 2023 to July 2024
+2,327

Where Howard County is

The Census internal point of Howard County is at 39.252300, -76.924400. 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 Howard County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Howard County

No incorporated place of 1,000 or more people has residents in Howard County. Its 339,668 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Howard County

The Census 2024 county adjacency file lists 6 neighbors for Howard County. The most populous is Montgomery County, MD, with 1,082,273 residents. Distances run between Census internal points in a straight line.

Distance to Annapolis and the nearest big city

Annapolis is 29.9 miles SE of Howard County's internal point in a straight line. The nearest place of 100,000 or more is Baltimore, MD (population 568,271), 17.1 miles away. The nearest place of 10,000 or more is Laurel, MD (population 30,238), 11.4 miles away.

Howard County FIPS code

The FIPS code of Howard County is 24027: state code 24 for Maryland plus county code 027. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $140,113.

Questions people ask

What is the population of Howard County, Maryland?

The Census Vintage 2024 estimate for July 1, 2024 is 339,668. That is up 6,847 people (2.1%) from the July 2020 estimate of 332,821.

What is the FIPS code of Howard County?

24027. The first two digits (24) are Maryland; the last three (027) identify the county.

What is the largest town in Howard County?

No incorporated place of 1,000 or more people has residents in Howard County. Its people live in smaller towns, census-designated places or unincorporated land.

Which counties border Howard County?

6 county-equivalents border it in the Census 2024 adjacency file: Montgomery County, MD; Prince George's County, MD; Baltimore County, MD; Anne Arundel County, MD; Frederick County, MD; Carroll County, MD.

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.