PlainZIP

Conowingo, MD

Single-footprint Census roll-up for Conowingo, MD: 1 USPS ZIP, population 4,284. 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 CONOWINGO-MD · Conowingo, MD 1 ZIPs · 4,284 pop · #7825/25278 · Cecil County

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

  • INC-HIGH $84,587
  • RANK-UPPER #7825/25278
  • PHOTO-FINISH ≈ Elkton
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 89% owners
  • POP-VILLAGE 4,284
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $324,800

Nearest income peer: Elkton, MD (+ $1,188 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 Conowingo

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

Top 31%
household income vs 25,278 US cities
4,284
city population (Census)
1
USPS ZIP codes covered
$84,587
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 21918 (4,284 residents). Household income $84,587 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy here runs high (88.6%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Maryland, Eden is the closest lower-income city and Windsor Mill the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Conowingo.

Population concentration

Conowingo's single ZIP 21918 carries the town

Conowingo is published as a single USPS ZIP. Code 21918 is the entire residential footprint (4,284 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

Sparse ZBP book inside single-ZIP Conowingo

Citywide ZBP: 48 establishments, 260 employees , annual payroll $10,747k (~11 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 21918 (48 units) ; leading NAICS Construction (10) · also Other services (except public administration) · Retail trade .

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ZIP Codes in Conowingo, MD

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

Conowingo sits in the lower half of Cecil County on income: North East, Rising Sun and Port Deposit report more, Perryville, Warwick and Charlestown report less. North East marks the far end of that range at $113,719, 34% above Conowingo.

ZIP Code Population Median income Establishments Density
21918 4,284 $84,587 48 94
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Conowingo 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 Conowingo, .