Arnold, MD
Population 23,866 · Maryland
About Arnold, MD
Arnold is a mid-sized city in Maryland with a population of 23,866 residents. The median household income is $137,799 per year, which is above the national average. The median age in Arnold is 38.2 years.
Housing in Arnold has a median home value of $547,800 and median monthly rent of $2,177. Of the 8,989 total housing units, the majority are owner-occupied, with 7,319 owner-occupied and 1,234 renter-occupied units.
The unemployment rate in Arnold is 3.1% and the poverty rate is 3.0%. 59.4% of residents hold a bachelor's degree or higher. The average commute time is 30.3 minutes.
Cost of Living in Arnold, MD
Compared to national averages, Arnold has a median household income of $137,799 (83% above the national median of $75,149). Home values average $547,800, which is 124% above the national median. Monthly rent at $2,177 is 87% above the US average of $1,163. Within Maryland, Arnold's income is 28% above the state average of $107,956, and home values are 36% above the state median of $402,447.
Why Live in Arnold, MD?
Arnold offers a strong local economy with a median household income of $137,799, well above the national average, and a strong job market with an unemployment rate of just 3.1%, and a well-educated community where 59.4% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 3.0%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $547,800. However, Arnold’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Arnold has a population of 23,866 with a median age of 38.2 years. Compare Arnold with other cities to see how it stacks up, or explore all cities in Maryland.
Similar Cities Near Arnold
Cities in Maryland with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| North Potomac | 23,994 | $186,438 | $793,200 | Compare |
| Cockeysville | 23,265 | $85,422 | $392,000 | Compare |
| Landover | 24,558 | $68,679 | $301,400 | Compare |
| Greenbelt | 24,572 | $86,352 | $258,600 | Compare |
| Suitland | 24,667 | $71,886 | $312,600 | Compare |
| Edgewood | 25,170 | $86,355 | $234,700 | Compare |
| North Laurel | 25,201 | $119,533 | $442,800 | Compare |
| Camp Springs | 22,174 | $115,157 | $379,500 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Maryland
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Arnold
What is the population of Arnold, MD?
The population of Arnold, MD is 23,866 according to the latest Census data.
What is the median household income in Arnold?
The median household income in Arnold, MD is $137,799 per year.
What is the median home value in Arnold?
The median home value in Arnold, MD is $547,800.
What is the average rent in Arnold?
The median monthly rent in Arnold, MD is $2,177.
What is the unemployment rate in Arnold?
The unemployment rate in Arnold, MD is 3.1%.