- Location: Bollinger County, Missouri
- Legal status: Village
- Population: 145 (Change since 1990: +51.0%)
- Founded: 1868
- Name origin: Thomas Allen
- Alternate name: Glen Allen
- Located near intersection of MO 51 and Route ZZ just west of Marble Hill
- Latitude: 37°19'01" N (+37.3169)
- Longitude: 90°01'42" W (-90.0282)
- Elevation: 460 feet above sea level
- Public Land Survey: T. 30 N., R. 9 E., Sec. 35
- Civil township: Lorance
- Land area: 0.06 square miles (37.5 acres)
As the crow flies, Glenallen is...
Name origin
Named for Thomas Allen, President
of the St. Louis & Iron Mountain Railroad.
Timeline
- 1868
- Glen Allen founded
- 1869
- Railroad completed
- May 3, 1872
- Post office opened
- Dec. 26, 1894
- Post office officially changed name from "Glen Allen" to "Glenallen"
- 1906
- Glenallen incorporated
| Year | Population | Percent change |
|---|
| 1910 | 106 | -- |
| 1920 | 148 | +39.6% |
| 1930 | 135 | -8.8% |
| 1940 | 118 | -12.6% |
| 1950 | 107 | -9.3% |
| 1960 | 113 | +5.6% |
| 1970 | 134 | +18.6% |
| 1980 | 125 | -6.7% |
| 1990 | 96 | -23.2% |
| 2000 | 145 | +51.0% |