Investment metrics, interactive calculators, and data-driven analysis for Decatur rental properties.
Market data powered by Zillow Home Value Index (ZHVI) and Zillow Observed Rent Index (ZORI) · Updated Feb 2026
Pre-filled with Decatur medians. Adjust to match a specific property.
Factor in financing to see your actual return on invested capital in Decatur.
Decatur, IL has a population of 50,000 and has been growing at 0.2% annually — roughly in line with national trends, meaning demand is stable but not exceptional. The median home price of $120,000 paired with median rents of $1,120/mo produces an estimated cap rate of 7.68%.
Property taxes at 2.06% are notably high and represent a significant drag on cash flow — model this expense carefully, as it can make or break a deal. The vacancy rate of 5.9% is moderate and within normal parameters for a healthy rental market.
At a price-to-income ratio of 1.9x, homes cost about 1.9 times the local median income of $62,333. This relatively affordable ratio suggests a deep pool of renters who find buying out of reach, supporting rental demand. Home values have appreciated at roughly 2.1% annually. Steady appreciation means total returns will be primarily cash flow-driven — the more sustainable model for long-term wealth building.
Bottom line: Decatur offers attractive fundamentals for rental investors. and cap rates above 6% put it in the upper tier of investable markets.