PlainZIP

Gwynn Oak, MD

Single-footprint Census roll-up for Gwynn Oak, MD: 1 USPS ZIP, population 48,133. 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 GWYNN-OAK-MD · Gwynn Oak, MD 1 ZIPs · 48,133 pop · #14455/25278 · Baltimore County

INC-MID · RANK-MID · PHOTO-FINISH · BOOK-ONE · OWN-LOW · POP-SMALL · SPREAD-UNK · HOME-MID

  • INC-MID $67,060
  • RANK-MID #14455/25278
  • PHOTO-FINISH ≈ Essex
  • BOOK-ONE 1 ZIP
  • OWN-LOW 61% owners
  • POP-SMALL 48,133
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $260,300

Nearest income peer: Essex, MD (+ $280 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 Gwynn Oak

Lowest/highest poles plus county-sharing cities nearest Gwynn Oak 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, Gwynn Oak, MD sits among US cities with a below-median household income, on a small-city population base, across a single-ZIP footprint.

43rd pct
household income vs 25,278 US cities
48,133
city population (Census)
1
USPS ZIP codes covered
$67,060
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.

Below-median income with few delivery areas (1): read cost-of-living from the primary ZIP. Household income $67,060 and poverty 13.5% concentrate in 21207.

Owner-occupancy is comparatively low (60.7%) for this income tier, rent $1,432 may matter more than the home-value average.

Within Maryland, Hillsboro is the closest lower-income city and Hurlock the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Gwynn Oak.

Population concentration

One ZIP, 21207, is all of Gwynn Oak

There is no split to weigh here: 21207 holds every one of Gwynn Oak's 48,133 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Sparse ZBP book inside single-ZIP Gwynn Oak

Citywide ZBP: 498 establishments, 6,909 employees , annual payroll $334,088k (~10 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 21207 (498 units) ; leading NAICS Health care and social assistance (76) · also Retail trade · Other services (except public administration) .

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ZIP Codes in Gwynn Oak, MD

These ZIP codes sit in Baltimore County, which covers 41 ZIP codes in all; 1 of them fall in Gwynn Oak. See the Baltimore County roll-up →

Gwynn Oak sits in the lower half of Baltimore County on income: Baltimore, Parkville and Owings Mills report more, and only Dundalk reports less. Lutherville Timonium marks the far end of that range at $125,528, 87% above Gwynn Oak.

ZIP Code Population Median income Establishments Density
21207 48,133 $67,060 498 1,802
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Gwynn Oak 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 Gwynn Oak, .