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Adelphi, Ohio
Village
Along State Route 180
Along State Route 180
Location of Adelphi, Ohio
Location of Adelphi, Ohio
Location of Adelphi in Ross County
Location of Adelphi in Ross County
Country United States
State Ohio
County Ross
Area
 • Total 0.28 sq mi (0.71 km2)
 • Land 0.27 sq mi (0.71 km2)
 • Water 0.00 sq mi (0.00 km2)
Elevation
840 ft (256 m)
Population
 (2010)
 • Total 380
 • Estimate 
(2019)
375
 • Density 1,368.61/sq mi (528.67/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
ZIP code
43101
Area code(s) 740
FIPS code 39-00450
GNIS feature ID 1064300

Adelphi is a village in Ross County, Ohio, United States. The population was 380 at the 2010 census.

Adelphi was laid out in 1804 by two brothers, and named after the Greek word for "brothers". Adelphi was incorporated as a village in 1838.

Geography

Adelphi is located at 39°27′58″N 82°44′45″W / 39.46611°N 82.74583°W / 39.46611; -82.74583 (39.466041, -82.745707).

According to the United States Census Bureau, the village has a total area of 0.27 square miles (0.70 km2), all land.

Demographics

Historical population
Census Pop.
1820 132
1830 247 87.1%
1840 250 1.2%
1850 412 64.8%
1860 378 −8.3%
1870 417 10.3%
1880 469 12.5%
1890 489 4.3%
1900 516 5.5%
1910 407 −21.1%
1920 329 −19.2%
1930 412 25.2%
1940 414 0.5%
1950 392 −5.3%
1960 441 12.5%
1970 455 3.2%
1980 472 3.7%
1990 398 −15.7%
2000 371 −6.8%
2010 380 2.4%
2019 (est.) 375 −1.3%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 380 people, 154 households, and 100 families living in the village. The population density was 1,407.4 inhabitants per square mile (543.4/km2). There were 175 housing units at an average density of 648.1 per square mile (250.2/km2). The racial makeup of the village was 95.0% White, 1.6% African American, 0.3% Asian, and 3.2% from two or more races.

There were 154 households, of which 34.4% had children under the age of 18 living with them, 47.4% were married couples living together, 11.7% had a female householder with no husband present, 5.8% had a male householder with no wife present, and 35.1% were non-families. 29.2% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.00.

The median age in the village was 39 years. 26.8% of residents were under the age of 18; 6.3% were between the ages of 18 and 24; 25.5% were from 25 to 44; 26.1% were from 45 to 64; and 15.3% were 65 years of age or older. The gender makeup of the village was 51.1% male and 48.9% female.

Notable people

  • Tella Kitchen (1902–1988), folk art painter
  • John Purdue - founding benefactor of Purdue University; Purdue Block, Lafayette, Indiana; Tippecanoe County, Indiana, founder
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