Home values, rents and more in ZIP code 21012 (Arnold, MD)
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
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- $500k–$590k
- $590k–$620k
- $620k–$700k
- $700k+
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How 21012 compares
The typical home in ZIP code 21012 (Arnold, MD) is worth about $592,000, according to the Zillow Home Value Index for September 2026. Home values in 21012 are 49% above the typical value in the Baltimore metro area ($397,000) and 1.6 times the U.S. typical value ($366,000).
Over the past year, home values in 21012 rose 2.1%, compared with +0.4% in the Baltimore metro area and +1.2% nationally.
The median household income is $139,432, against $99,470 in the Baltimore metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 22,570 people live in 21012 (American Community Survey 2020–24).
21012 has the 38th-highest typical home value of the 149 ZIP codes in the Baltimore metro area and the 85th-highest of 423 in Maryland with Zillow figures.
Part of: Arnold, MD · Anne Arundel County, MD · Baltimore metro area · Maryland
More for 21012 in ProMap Plus
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Zillow 12-month price forecast
- Crime rates
- School test scores
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby ZIP codes
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.