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Arnold, MD

Census-designated place in Anne Arundel County, Maryland. ZIP codes: 21012.

Population

24,303

Land area

10.8sq mi

People per sq mi

2,246

ZIP codes

1

Arnold and its ZIP codes

Full map

Arnold at a glance

  • Arnold is about 3.5 times as dense as Maryland as a whole.
  • By population, it ranks 60th among 527 cities and towns in Maryland.
  • The median household income is $141,639, 37% above the Maryland median of $103,678.
  • A typical owner-occupied home is valued at $564,200 (34% above Maryland) and median rent is $2,158 a month.

Local data for Arnold, MD

Counts from official public data

Housing and community stats

Arnold, MD, American Community Survey 2020-2024

Full profile

Median household income

$141,639

Poverty rate

3.1%

Median home value

$564,200

Median rent

$2,158/mo

Homeownership

86.5%

Bachelor's or higher

58.0%

Median age

37.9

Average commute

28.1 min

Largest reported origins and ancestries: German Americans (4,401), Irish Americans (3,502), Italian Americans (1,797).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Anne Arundel County. PPP loans are for Arnold.

Details

Unemployment rate

3.4%

Aug 2026, -0.6 pts in a year

Average annual pay

$81,944

293,059 jobs, 2025

Income per person

$87,614

BEA, 2024

Federal spending

$9.19B

FY 2026, $15,627 per person

PPP loans

$26.26M

489 loans, 3,386 jobs reported

Anne Arundel County economyFederal spendingPPP loans

How people get to work

Arnold, MD, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone69.1%
  • Carpooled5.9%
  • Public transit0.5%
  • Walked0.4%
  • Bicycle0.6%
  • Taxi, ride-hailing, motorcycle or other1.1%
  • Worked from home22.5%

Average one-way commute: 28.1 minutes for people who do not work from home.

Environment and hazard risk

Arnold, MD, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: winter weather

Storm events since 1996

1,387

Countywide, mostly thunderstorm wind

Flood insurance policies

4,442

2.5% of homes, county

July high / Jan low

89° / 29°F

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Arnold, MD, CDC PLACES estimates

All 40 measures

Obesity

32.2%

U.S. 33.3% -1.1 pts

Diabetes

9.1%

U.S. 12.1% -3.0 pts

Smoking

9.0%

U.S. 12.8% -3.8 pts

Uninsured (18-64)

4.8%

U.S. 11.1% -6.3 pts

ZIP codes in Arnold

1 in or overlapping Arnold. Population shown

·

Cities near Arnold

NameDistanceLand area (sq mi)
Cape St. ClaireCensus-designated place3.1 mi2
Herald HarborCensus-designated place3.8 mi1.7
Naval AcademyCensus-designated place3.9 mi0.5
ParoleCensus-designated place4.4 mi10.3
Lake ShoreCensus-designated place4.4 mi13.4
AnnapolisCity4.7 mi7.2
Severna ParkCensus-designated place4.7 mi16.5
CrownsvilleCensus-designated place4.8 mi5.1
Arden on the SevernCensus-designated place5.1 mi1.4
Annapolis NeckCensus-designated place6.9 mi6.9
EdgewaterCensus-designated place7.7 mi3
Highland BeachTown7.8 mi0.1
RivaCensus-designated place8.1 mi2.5
Riviera BeachCensus-designated place8.3 mi2.6
PasadenaCensus-designated place8.4 mi14.9
GambrillsCensus-designated place9 mi7.6

Frequently asked questions

What county is Arnold, MD in?
Arnold is in Anne Arundel County, Maryland.
What ZIP codes are in Arnold, MD?
ZIP codes in or overlapping Arnold include 21012.
What is the population of Arnold, MD?
About 24,303 people live in Arnold, based on American Community Survey 5-year estimates.
What cities are near Arnold?
Nearby places include Cape St. Claire (3.1 mi), Herald Harbor (3.8 mi), Naval Academy (3.9 mi), Parole (4.4 mi), Lake Shore (4.4 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023