House Prices

House Prices & Home Values Illiopolis, IL 2026


Average Data

average house price$150,104
average size per house1934 ft²
average price per ft²78 $ / ft²

04/21/2026 - The value range (VR) for house prices in Illiopolis, IL is $91/ sqft to $91/ sqft. An average home with 1934 sqft costs approximately $175,994 to $175,994. Illiopolis, IL includes 1 ZIP codes and it is located in Sangamon county. The lowest prices are found in ZIP 62539, while the highest are in ZIP 62539. The average price per sqare feet is $78. Our analysis is based on 32 property listings.

Avergage prices by ZIP codes Illiopolis

6253995 $ / ft²




Historical development of home values in Illiopolis

Year Estimated value (USD) Change vs. 2025
2010 $69,711 -53.6%
2011 $67,015 -55.4%
2012 $66,835 -55.5%
2013 $69,333 -53.8%
2014 $72,780 -51.5%
2015 $76,516 -49.0%
2016 $80,509 -46.4%
2017 $84,854 -43.5%
2018 $89,546 -40.3%
2019 $93,698 -37.6%
2020 $98,541 -34.4%
2021 $112,080 -25.3%
2022 $130,660 -13.0%
2023 $137,787 -8.2%
2024 $145,759 -2.9%
2025 $150,104 0.0%

Graph: estimated home values in Illiopolis over time (USD)



Example: 100% financing house in Illiopolis

Loan amount: $150,104

Interest rate: 6.00%

Fixed monthly payment: $899.95

Breakdown in the 1st month:
Interest portion: $750.52  –  Principal portion: $149.43

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $8,956.10 $1,843.29 $148,260.71
2 $8,842.41 $1,956.99 $146,303.72
3 $8,721.70 $2,077.69 $144,226.03
4 $8,593.56 $2,205.83 $142,020.20
5 $8,457.51 $2,341.89 $139,678.31
6 $8,313.06 $2,486.33 $137,191.98
7 $8,159.71 $2,639.68 $134,552.30
8 $7,996.90 $2,802.49 $131,749.81
9 $7,824.05 $2,975.34 $128,774.47
10 $7,640.54 $3,158.85 $125,615.62
11 $7,445.71 $3,353.68 $122,261.94
12 $7,238.86 $3,560.53 $118,701.40
13 $7,019.25 $3,780.14 $114,921.27
14 $6,786.10 $4,013.29 $110,907.98
15 $6,538.57 $4,260.82 $106,647.16
16 $6,275.77 $4,523.62 $102,123.54
17 $5,996.77 $4,802.62 $97,320.92
18 $5,700.55 $5,098.84 $92,222.08
19 $5,386.07 $5,413.33 $86,808.75
20 $5,052.18 $5,747.21 $81,061.54
21 $4,697.71 $6,101.68 $74,959.86
22 $4,321.37 $6,478.02 $68,481.84
23 $3,921.82 $6,877.57 $61,604.27
24 $3,497.63 $7,301.76 $54,302.50
25 $3,047.27 $7,752.12 $46,550.38
26 $2,569.14 $8,230.26 $38,320.13
27 $2,061.51 $8,737.88 $29,582.25
28 $1,522.58 $9,276.81 $20,305.44
29 $950.41 $9,848.99 $10,456.45
30 $342.94 $10,456.45 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Illiopolis, IL


1500 sqft3900 sqft
Ø selling price$141,571$301,158
Ø fast selling$128,701$271,043
Ø high price sale$154,440$331,274

In 2026, houses in Illiopolis, IL will be offered at an average price of $78 per square foot. A 1,500 sqft home priced at $141,571 is 23.85% more expensive per square foot than a 3,900 sqft home priced at $301,158. Home prices in Illiopolis, IL vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $208,495. Sellers who can wait longer may achieve a higher price of up to $254,827.

FAQ – Home Values in Illiopolis

What is the median home value in Illiopolis in 2026?

In 2026, the typical home value in Illiopolis is about $150,104 for an average home size of 1934 square feet. This corresponds to an average price of roughly $78 per square foot.

What is the average cost per square foot in Illiopolis?

In 2026, homes in Illiopolis sell for an average of around $78 per square foot, with a typical range between $91 and $91 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in Illiopolis is about 1934 square feet, with an estimated 2026 value around $150,104.



Locations close to Illiopolis, IL

Kincaid, IL56 $ / ft²
Lake Fork, IL54 $ / ft²
Latham, IL51 $ / ft²
Harvel, IL71 $ / ft²
Harristown, IL77 $ / ft²
Glenarm, IL107 $ / ft²
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