Arnold, MD Community Bulletin Board (21012) | LocalSquare
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Arnold, MD Community Bulletin Board ZIP 21012

Browse the Arnold, MD community bulletin board and local message board for ZIP 21012 (pop. 23,536 · median income $133,481). Follow new posts or add a pin fr...

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68°F scattered clouds
Feels like 69°F · Wind 10 mph
Pop 23,536|Income $133,481|Home Value $458,800|🏫 7 Schools
EDT 11:20 PM|Airport BWI 13 mi
Walk Score|🚶4Walk|🚲5Bike
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🏫 Schools 7
Elem3·Middle2·High1·Other1
E Arnold Elementary
M Magothy River Middle
H Broadneck High
O AACPS Virtual Academy
+ 3 more
All Schools & Details →
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About Arnold, MD 21012

What local businesses are in Arnold, MD 21012?

The Arnold, MD 21012 community board is open for local businesses to claim spots. LocalSquare connects businesses with their neighbors through an affordable digital bulletin board starting at $1/month.

What can I find on the Arnold, MD community bulletin board?

The board collects current local business listings, services, events, offers, and community requests for ZIP 21012. Use the category filter to narrow what is shown.

How can I follow new posts in Arnold, MD?

Choose Follow updates near the top of this board, select a daily or weekly maximum frequency, and confirm your email. LocalSquare sends a digest only when new posts have appeared, and every message has one-click unsubscribe.

What is the population of Arnold, MD 21012?

Arnold, MD 21012 has a population of 23,536, a median household income of $133,481, a median home value of $458,800.

What schools are near Arnold, MD 21012?

There are 7 schools serving the Arnold, MD area, including Arnold Elementary, Belvedere Elementary, Broadneck Elementary, Magothy River Middle, Severn River Middle, and 2 more.

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Last updated: August 2026