Location of Rochester within Kentucky
|• Total||0.5 sq mi (1.3 km2)|
|• Land||0.5 sq mi (1.2 km2)|
|• Water||0.04 sq mi (0.1 km2) 5.46%|
|Elevation||410 ft (125 m)|
|• Density||327/sq mi (126.1/km2)|
|Time zone||CST (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|Area code(s)||270 & 364|
|GNIS feature ID||0502100|
Rochester is located in western Butler County at  Its northwestern boundary, the Green River, is the county boundary as well, with Ohio County on the opposite side of the river. A small portion of the western boundary of the city is formed by the Mud River, which is also the boundary with Muhlenberg County. Kentucky Route 70 (Rochester Road) passes through the city, leading east 14 miles (23 km) to Morgantown, the Butler County seat, and west 10 miles (16 km) to Drakesboro. Kentucky Route 369 leaves Rochester to the north, crossing the Green River by the Rochester Ferry and leading north 14 miles (23 km) to Beaver Dam.(37.210712, -86.892483).
As of the census of 2000, there were 186 people, 81 households, and 57 families residing in the city. The population density was 423.6 people per square mile (163.2/km²). There were 102 housing units at an average density of 232.3 per square mile (89.5/km²). The racial makeup of the city was 100.00% White.
There were 81 households out of which 23.5% had children under the age of 18 living with them, 59.3% were married couples living together, 8.6% had a female householder with no husband present, and 29.6% were non-families. 27.2% of all households were made up of individuals and 19.8% had someone living alone who was 65 years of age or older. The average household size was 2.30 and the average family size was 2.75.
In the city the population was spread out with 20.4% under the age of 18, 5.9% from 18 to 24, 18.3% from 25 to 44, 32.8% from 45 to 64, and 22.6% who were 65 years of age or older. The median age was 49 years. For every 100 females there were 89.8 males. For every 100 females age 18 and over, there were 89.7 males.
The median income for a household in the city was $31,250, and the median income for a family was $33,472. Males had a median income of $36,563 versus $16,875 for females. The per capita income for the city was $36,708. About 9.0% of families and 8.7% of the population were below the poverty line, including none of those under the age of eighteen and 13.3% of those sixty five or over.
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Rochester city, Kentucky". U.S. Census Bureau, American Factfinder. Retrieved November 27, 2013.
- Collins, Lewis (1877). History of Kentucky. p. 107.
- "Dictionary of Places: Rochester". Encyclopedia of Kentucky. New York, New York: Somerset Publishers. 1987. ISBN 0-403-09981-1.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.