Apartments for Rent in Alton, IL

Prices and availability in Alton, IL were last updated on 2 Jul 2026.

The best apartments in Alton, IL are: Marian Heights, Sunnybrook - Operating and 1106 George St, Unit 1106.

The average rent in Alton, IL is $880.

In Alton 40% of the housing is rented out compared to 60% of homes are owned, according to the most recent Census Bureau estimates. 12% of Alton's apartments are found in large buildings of 50 units or more, 32% are located in smaller apartment complexes with less than 50 units, and 52% are single-family rentals.

The average age of rental buildings in Alton is 47 years old, with 18% being newer apartment buildings completed since 2000. The average height of apartment buildings in the city is 3 stories, of which 72% are garden-style apartment communities, 28% are mid-sized buildings, and none are high-rises. These characteristics describe large-scale apartment communities of 50 apartments or more.

Rental apartments in Alton come in a range of sizes and floorplans. Studio apartments represent 2% of units for rent, ideal for singles, renters on a budget and people who value central locations more than space. Rentals with 1-bedroom floorplans make up 50% of the total apartments in the city, while 2-bedroom floorplans represent around 30% of all rentals in Alton. The rest are larger floorplans with 3 bedrooms or more, typically preferred by families, larger households or roommates sharing space.