PlainZIP

Secretary, MD

Single-footprint Census roll-up for Secretary, MD: 1 USPS ZIP, population 539. 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 SECRETARY-MD · Secretary, MD 1 ZIPs · 539 pop · #8416/25278 · Dorchester County

INC-HIGH · RANK-UPPER · PHOTO-FINISH · BOOK-ONE · OWN-MID · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-HIGH $82,721
  • RANK-UPPER #8416/25278
  • PHOTO-FINISH ≈ Fishing Creek
  • BOOK-ONE 1 ZIP
  • OWN-MID 70% owners
  • POP-VILLAGE 539
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $172,000

Nearest income peer: Fishing Creek, MD (+ $529 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 Secretary

Lowest/highest poles plus county-sharing cities nearest Secretary 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, Secretary, MD sits among US cities with an above-median household income, on a village-scale population base, across a single-ZIP footprint.

Top 33%
household income vs 25,278 US cities
539
city population (Census)
1
USPS ZIP codes covered
$82,721
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.

Above-median income on a short ZIP list (1) - lead code 21664 (539 residents). Household income $82,721 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy sits in a mixed band (70.0%) - check the ZIP page's tenure split before treating Secretary as a pure owner town.

Within Maryland, Curtis Bay is the closest lower-income city and Oxford the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Secretary.

Population concentration

Secretary's single ZIP 21664 carries the town

Secretary is published as a single USPS ZIP. Code 21664 is the entire residential footprint (539 ACS residents), so the city page and the ZIP page tell the same household story, open that ZIP for income, tenure, and commute detail.

Census ZBP business roll-up

Mid-pack ZBP load on Secretary's one ZIP

Citywide ZBP: 12 establishments, 58 employees , annual payroll $2,969k (~22 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 21664 (12 units) ; leading NAICS Construction (3) · also Other services (except public administration) .

View your shortlist →

ZIP Codes in Secretary, MD

These ZIP codes sit in Dorchester County, which covers 16 ZIP codes in all; 1 of them fall in Secretary. See the Dorchester County roll-up →

Secretary sits in the upper half of Dorchester County on income: Cambridge, Hurlock and East New Market report less, while Taylors Island reports more. Linkwood marks the far end of that range at $47,083, 43% below Secretary.

ZIP Code Population Median income Establishments Density
21664 539 $82,721 12 481
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Secretary 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 Secretary, .