PlainZIP

Arnold, MD

Single-footprint Census roll-up for Arnold, MD: 1 USPS ZIP, population 21,317. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet ARNOLD-MD · Arnold, MD 1 ZIPs · 21,317 pop · #1184/25278 · Anne Arundel County

INC-TOP · RANK-TOP · PHOTO-FINISH · BOOK-ONE · OWN-HIGH · POP-TOWN · SPREAD-UNK · HOME-HIGH

  • INC-TOP $139,432
  • RANK-TOP #1184/25278
  • PHOTO-FINISH ≈ Crofton
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 86% owners
  • POP-TOWN 21,317
  • SPREAD-UNK Single-ZIP book
  • HOME-HIGH $563,800

Nearest income peer: Crofton, MD (+ $1,912 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Arnold

Lowest/highest poles plus county-sharing cities nearest Arnold on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Arnold, MD sits among US cities with a top-decile household income, on a town-scale population base, across a single-ZIP footprint.

Top 5%
household income vs 25,278 US cities
21,317
city population (Census)
1
USPS ZIP codes covered
$139,432
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $139,432 and home value $563,800 should be read as near-neighborhood numbers ; bachelor's attainment averages 57.5%.

Owner-occupancy here runs high (86.3%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Maryland, Sykesville is the closest lower-income city and Glenn Dale the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Arnold.

Population concentration

Arnold reads through its lone ZIP, 21012

21,317 ACS residents, one ZIP: 21012 is not the leading code inside Arnold, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Mid-pack ZBP load on Arnold's one ZIP

Citywide ZBP: 404 establishments, 3,428 employees , annual payroll $151,689k (~19 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 21012 (404 units) ; leading NAICS Health care and social assistance (73) · also Construction · Professional, scientific, and technical services .

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ZIP Codes in Arnold, MD

These ZIP codes sit in Anne Arundel County, which covers 36 ZIP codes in all; 1 of them fall in Arnold. See the Anne Arundel County roll-up →

Arnold lands mid-pack among the 11 cities sharing Anne Arundel County: Severna Park, Edgewater and Millersville earn more and Laurel, Annapolis and Glen Burnie earn less. Glen Burnie marks the far end of that range at $96,233, 31% below Arnold.

ZIP Code Population Median income Establishments Density
21012 21,317 $139,432 404 843
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Arnold roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Arnold, .