Andover, Illinois — City Overview

Living in Andover, summers are warm, peaking at 84.3°F in Jul, while winters are cold — Jan lows average 16.3°F. Winter heating is a real budget factor — 5767 degree days means 4-5 months of meaningful energy bills. With 37.2 inches annually, the climate is relatively dry. Within 5 miles: 2 parks. For hospital care, the nearest facility is in a neighboring city. Median household income: $64,464. With a 4.0% poverty rate and 83.1% homeownership, the community reflects a stable residential mix. Nearby cities: Colona (13mi N), Geneseo (13mi NE), Coal Valley (14mi NW). Air quality is Good — avg AQI 41 over the past week.

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Updated August 27, 2026.

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