ZIP Code 61257
About Hillsdale
Hillsdale is a village in Rock Island County, Illinois, United States. The population was around 531 at the time of the 2020 census, up from around 523 at the 2010 census.
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Area Profile
US Census (ACS 5-year · Gazetteer)
866
population
$62,000
median household income
21
people / sq mi
$116,300
median home value
$1,641
median gross rent
47.8
median age
483
housing units
358
households
41.3
land area (sq mi)