PlainZIP

Port Republic, MD

Single-footprint Census roll-up for Port Republic, MD: 1 USPS ZIP, population 3,871. 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 PORT-REPUBLIC-MD · Port Republic, MD 1 ZIPs · 3,871 pop · #708/25278 · Calvert County

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

  • INC-TOP $156,657
  • RANK-TOP #708/25278
  • PHOTO-FINISH ≈ Owings
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 87% owners
  • POP-VILLAGE 3,871
  • SPREAD-UNK Single-ZIP book
  • HOME-HIGH $509,900

Nearest income peer: Owings, MD (+ $3,194 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 Port Republic

Lowest/highest poles plus county-sharing cities nearest Port Republic 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, Port Republic, MD sits among US cities with a top-decile household income, on a village-scale population base, across a single-ZIP footprint.

Top 3%
household income vs 25,278 US cities
3,871
city population (Census)
1
USPS ZIP codes covered
$156,657
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 $156,657 and home value $509,900 should be read as near-neighborhood numbers ; bachelor's attainment averages 37.9%.

Owner-occupancy here runs high (87.1%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Maryland, Bel Alton is the closest lower-income city and Mount Airy the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Port Republic.

Population concentration

Port Republic's single ZIP 20676 carries the town

Port Republic is published as a single USPS ZIP. Code 20676 is the entire residential footprint (3,871 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 Port Republic

Citywide ZBP: 37 establishments, 141 employees , annual payroll $8,145k (~10 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 20676 (37 units) ; leading NAICS Construction (12) · also Other services (except public administration) · Retail trade .

View your shortlist →

ZIP Codes in Port Republic, MD

These ZIP codes sit in Calvert County, which covers 13 ZIP codes in all; 1 of them fall in Port Republic. See the Calvert County roll-up →

Port Republic sits in the upper half of Calvert County on income: Lusby, Prince Frederick and Chesapeake Beach report less, while Huntingtown, Dunkirk and Sunderland report more. Dowell marks the far end of that range at $87,389, 44% below Port Republic.

ZIP Code Population Median income Establishments Density
20676 3,871 $156,657 37 90
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Port Republic 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 Port Republic, .