Arnold CDP, Maryland Demographics & Population 2026
As of 2026, Arnold CDP, Maryland has a total population of 23,866, the 62nd largest city in Maryland, with a median household income of $137,799, which is 36% higher than the state average. The poverty rate is 3.0%.
Key Takeaways
- Household income is 36% above the state average — one of the wealthiest communities in Maryland.
- An exceptionally low poverty rate of 3.0% — among the lowest in Maryland.
Arnold CDP Quick Facts
How Arnold CDP Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 67 | National average: 60
Education
Educational Attainment (Adults 25+)
Arnold CDP Rankings in Maryland
Explore Maryland Rankings
Cities Similar to Arnold CDP
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Elkridge CDP | 26,183 | $135,412 | $438,200 | 56.6% | 7.8% |
| Fort Washington CDP | 25,843 | $145,942 | $464,300 | 41.7% | 5.4% |
| North Laurel CDP | 25,201 | $119,533 | $442,800 | 56.2% | 3.3% |
| North Potomac CDP | 23,994 | $186,438 | $793,200 | 77.1% | 5.4% |
| Camp Springs CDP | 22,174 | $115,157 | $379,500 | 31.1% | 6.5% |
Population Overview
Arnold CDP is a small city located in Maryland. The total population is 23,866. It ranks as the 62nd most populous out of 528 cities and towns in Maryland.
Age Demographics
The median age in Arnold CDP is 38.2 years. This is 3% lower than the state median of 39.3 years.
Economy, Income & Housing
The median household income in Arnold CDP is $137,799. This is 36% higher than the state median of $101,652. Compared to the national median of $78,538, household income here is 75% higher. The poverty rate stands at 3.0%. This is 68% lower than the state poverty rate of 9.3%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.1%. This is 38% lower than the state rate of 4.9%. The median home value is $547,800. Housing costs are 38% higher than the state median of $397,700. The home-value-to-income ratio is 4.0x. 85.6% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 67.5%.
Race & Ethnicity
The largest racial or ethnic group in Arnold CDP is White (non-Hispanic), making up 75.3% of the population. Hispanic or Latino residents account for 10.3%. The White (non-Hispanic) population is significantly higher than the state average (75.3% vs 47.4%). The Black or African American population (4.4%) is well below the state average of 29.2%.
Education
59.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% higher than the state rate of 42.7%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.0%. Notably, 25.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Arnold CDP, Maryland is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Maryland state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 528 Census-designated places in Maryland. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of Arnold CDP, Maryland?
Arnold CDP, Maryland has a population of 23,866 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Arnold CDP, MD?
The median household income in Arnold CDP is $137,799, which is 75% higher the national median of $78,538.
What is the poverty rate in Arnold CDP, MD?
The poverty rate in Arnold CDP is 3.0%. This means approximately 714 residents live below the federal poverty line.
What is the racial makeup of Arnold CDP, Maryland?
Arnold CDP's population is 75.3% White, 4.4% Black, 10.3% Hispanic/Latino, and 3.9% Asian.
What is the median home value in Arnold CDP, MD?
The median home value in Arnold CDP is $547,800. The home-value-to-income ratio is 4.0x.
How educated is Arnold CDP, Maryland?
59.4% of adults (25+) in Arnold CDP hold a bachelor's degree or higher, and 25.6% hold a graduate or professional degree.