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Adelphi, Ohio

Village in Ross County, Ohio · ZIP 43101

  • Ross County
  • Within Colerain Township
  • Census data · ACS 2019-2023
  • 311 (2024 estimate)Population
  • 153Households
  • $36,563Median household income
  • $123,800Median home value
  • 1ZIP codes

About Adelphi

This page shows only what has been published about Adelphi: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−13.2%
3203403603802000: 37120002010: 38020102020: 3222020371322
Population of Adelphi at each census
CensusPopulation
2000371
2010380
2020322

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 39, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 39, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 39, retrieved November 14, 2026.

Household income in Adelphi
Under $50k60.1%
$50k to $100k23.5%
$100k to $150k11.8%
$150k to $200k3.3%
$200k and over1.3%

Median household income $36,563 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 39, retrieved November 14, 2026.

Housing tenure in Adelphi
Owner occupied
82 units
Renter occupied
71 units
Vacancy rate
2.5%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 39, retrieved November 14, 2026.

Adelphi compared with its county and state
Adelphi compared with its county and state, American Community Survey 2019-2023
MeasureAdelphiRoss CountyOhio
Population32776,74811,780,046
Median household income$36,563$59,819$69,680
Median age40.141.039.6
Median home value$123,800$158,500$199,200
Bachelor’s degree or higher15.0%17.1%30.9%
Foreign-born residents0.0%1.0%5.0%
Owner-occupied homes53.6%70.6%67.0%
Mean commute to work31.0 minutes27.5 minutes23.6 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 39, retrieved November 14, 2026.

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Schools

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Nearby towns

Other towns in Ross County

All towns in Ross County