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Population (year 2000): 326. Estimated
population in July 2005: 323 (-0.9% change)
Males: 163 (50.0%), Females: 163 (50.0%)
Floyd County
Zip code:
50653
Median resident age: 41.8 years
Median household income: $35,500 (year 2000)
Median house value: $32,500 (year 2000)
Races in Marble Rock:
- White Non-Hispanic (99.4%)
- Two or more races (0.6%)
Ancestries: German (45.7%), English (10.7%),
United States (6.1%), Irish (5.8%), Norwegian (4.9%), Swedish
(4.3%).
Elevation: 1000 feet
Land area: 0.8 square miles
For population 25 years and over in Marble Rock
- High school or higher: 80.4%
- Bachelor's degree or higher: 6.1%
- Graduate or professional degree: 3.3%
- Unemployed: 12.3%
- Mean travel time to work: 39.0 minutes
For population 15
years and over in Marble Rock city
- Never married: 24.6%
- Now married: 54.9%
- Separated: 0.8%
- Widowed: 9.5%
- Divorced: 10.2%
0.0% Foreign born
Population change in the 1990s: -33 (-9.2%).
Hospitals/medical centers near Marble Rock:
- FLOYD COUNTY MEMORIAL HOSPITAL (about 16 miles;
CHARLES CITY, IA)
- MITCHELL COUNTY REGIONAL HEALTH CENTER (about 23
miles; OSAGE, IA)
- MERCY MEDICAL CENTER-NORTH IOWA (about 27 miles;
MASON CITY, IA)
Airports certified for carrier operations nearest to
Marble Rock:
- MASON CITY MUNI (about 34 miles; MASON CITY, IA; ID:
MCW)
- WATERLOO MUNI (about 44 miles; WATERLOO, IA; ID: ALO)
- ROCHESTER INTERNATIONAL (about 70 miles; ROCHESTER,
MN; ID: RST)
Other public-use airports nearest to Marble Rock:
- ALLISON MUNI (about 16 miles; ALLISON, IA; ID: K98)
- CHARLES CITY MUNI (about 20 miles; CHARLES CITY, IA;
ID: CCY)
- OSAGE MUNI (about 23 miles; OSAGE, IA; ID: D02)
Colleges/universities with over 2000 students nearest to
Marble Rock:
- NORTH IOWA AREA COMMUNITY COLLEGE (about 27 miles;
MASON CITY, IA; Full-time enrollment: 2,161)
- HAWKEYE COMMUNITY COLLEGE (about 49 miles; WATERLOO,
IA; FT enrollment: 3,292)
- UNIVERSITY OF NORTHERN IOWA (about 52 miles; CEDAR
FALLS, IA; FT enrollment: 12,524)
- NORTHEAST IOWA COMMUNITY COLLEGE-CALMAR (about 70
miles; CALMAR, IA; FT enrollment: 2,393)
- UPPER IOWA UNIVERSITY (about 75 miles; FAYETTE, IA;
FT enrollment: 3,173)
- IOWA STATE UNIVERSITY (about 77 miles; AMES, IA; FT
enrollment: 24,473)
- ROCHESTER COMMUNITY AND TECHNICAL COLLEGE (about 77
miles; ROCHESTER, MN; FT enrollment: 3,368)
Library in Marble Rock:
- MARBLE ROCK PUBLIC LIBRARY (Operating income:
$13,148; Location: 105 S. MAIN ST, BOX 236; 5,185 books;
18 audio materials; 408 video materials; 45 serial
subscriptions)
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