Hillsdale

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Hillsdale

Total population

451

Median home value

$99,200

12.4%

Bachelor's+

Median income

$86,250

Hillsdale$86k

National$74k

Elevation177 m

Land area0.68 km²

Weather68°F · Mostly Cloudy

Coordinates41.61°, -90.17°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

City facts

Facts from Wikidata (CC0).

Overview

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.

History & geography

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Current forecast

Forecast for Hillsdale, IL from NOAA NWS API.

Notable people from here

Hettie Belle Ege

American mathematician

W

Willard D. Klimstra

American researcher, zoology educator, and science administrator

P

P. D. Klimstra

American organic chemist and pharmaceutical company executive

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in Illinois

• Joslin
  5 mi away · pop. 56
• Erie
  5.9 mi away · pop. 1,614
• Geneseo
  10.8 mi away
• Barstow
  11.4 mi away
• Colona
  12.4 mi away · pop. 5,139
• Hampton
  12.4 mi away · pop. 1,926
• East Moline
  12.6 mi away · pop. 21,374
• Carbon Cliff
  13.6 mi away
• Campbell's Island
  14.1 mi away
• Atkinson
  15.9 mi away · pop. 982
• Morrison
  17.6 mi away
• Coal Valley
  18 mi away · pop. 4,229

Browse all places in Illinois →

Geography & sun

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Public attention

Pageview totals from the Wikimedia Pageviews API.

Books about Hillsdale

Flood insurance study

1982

A guide to the geology of the Hillsdale area

Dwain Berggren · 1980

The history of Detroit and Michigan

Silas Farmer · 1884

Search results from Open Library.

Recently spotted species

Chickweed Geometer Moth

Haematopis grataria

Seen 2026-09-21

Wild Turkey

Meleagris gallopavo

Seen 2026-09-20

common pawpaw

Asimina triloba

Seen 2026-09-20

Pigeon Horntail

Tremex columba

Seen 2026-09-18

flower-of-an-hour

Hibiscus trionum

Seen 2026-09-17

prickly fanpetals

Sida spinosa

Seen 2026-09-17

rose turtlehead

Chelone speciosa

Seen 2026-09-17

Bronzed Cutworm Moth

Nephelodes minians

Seen 2026-09-16

Research-grade observations from iNaturalist (within ~15 mi).