Illinois self storage cost: $85 to $190 per month
Illinois sits in the upper-mid range of US storage pricing, dominated by the Chicago metro premium. A 10x10 averages $107 statewide, with Chicago neighbourhoods spanning $108 (south side) to $246 (the Loop). Downstate cities (Springfield, Peoria, Rockford) average $90 to $100. Cook County property tax pass-through and freeze-thaw climate make Illinois a meaningfully different market from neighbouring Wisconsin or Indiana.
What Illinois self storage actually costs in 2026
Illinois state-wide pricing for a 10x10 standard self storage unit averages $107 per month in 2026, with climate-controlled at $139. The average masks a substantial split between Chicago metro and downstate. Within Chicago, the Loop and north-side neighbourhoods price at the top of the band ($176 to $246), south-side and west-side facilities at the bottom ($108 to $148), and outer suburbs in the middle ($108 to $164). Downstate cities are well below the metro: Peoria, Springfield, Rockford all average $85 to $100.
The Chicago premium has three components. First, land cost: developable parcels in north-side Chicago and the Loop run $4M to $20M+ per acre against $300K to $1M for downstate Illinois. Second, property tax: Cook County effective commercial property tax rates exceed 4 percent of market value for self storage, against typical rates of 1.5 to 2 percent in surrounding counties and downstate. Third, demand density: Chicago apartment turnover and limited in-unit storage create persistent demand similar to NYC on a smaller scale.
Public Storage, Extra Space, CubeSmart, and U-Haul all maintain heavy presence in the Chicago metro. CubeSmart is particularly strong in the western suburbs and consistently offers the most competitive rates in those submarkets. Independent operators are common in downstate Illinois and often beat the chain rates by 10 to 20 percent.
10x10 prices across Illinois markets
10x10 monthly rate / Illinois / 2026
| Market | 10x10 monthly | Note |
|---|---|---|
| Springfield | $78 to $108 | State capital, downstate low |
| Peoria | $82 to $114 | Central IL low |
| Rockford | $85 to $118 | Northern IL outside Chicago |
| Aurora | $108 to $148 | Chicago far suburb |
| Naperville | $118 to $164 | Affluent western suburb |
| Schaumburg | $112 to $158 | NW suburban hub |
| Chicago South Side | $108 to $148 | Chicago lower band |
| Chicago North Side | $132 to $182 | Chicago higher band |
| Chicago Loop | $176 to $246 | Highest, very limited supply |
Chicago metro pricing by unit size
Chicago metro pricing. Subtract roughly 25 to 40 percent for downstate Illinois.
5x5
Standard
$58 to $86
Climate
$76 to $112
5x10
Standard
$72 to $112
Climate
$94 to $146
10x10
Standard
$118 to $176
Climate
$153 to $229
10x15
Standard
$138 to $206
Climate
$179 to $268
10x20
Standard
$172 to $258
Climate
$224 to $335
10x30
Standard
$232 to $348
Climate
$302 to $452
Cook County property tax pass-through, explained
Property tax is a meaningful operating cost for any commercial real estate, and Cook County has one of the highest commercial effective rates in the US. The Cook County Assessor publishes assessed values, and the various overlapping taxing districts (City of Chicago, school districts, parks, county, state) levy rates that combined produce effective commercial rates above 4 percent of market value in most Chicago sub-markets.
For a self storage facility on a $5M parcel, that translates to roughly $200,000 per year in property tax, or about $16,700 per month. Spread across a 60,000 square foot facility, that is $0.28 per square foot per month, or roughly $28 per month for a 10x10 unit. By contrast, a comparable facility in DuPage County (effective rate around 2 percent) or Kane County (around 2.5 percent) pays $14 to $17 per month per 10x10 in property tax. The $11 to $14 difference accounts for a meaningful share of the Chicago-versus-suburb price gap.
The pass-through is not always evenly distributed. Facilities with longer-tenured assessments (lower assessed value relative to market) pay less and may pass on lower rates. Facilities recently sold or rebuilt face full current-market assessment and pass on the higher cost. The implication for renters is that older independent facilities sometimes offer significant discounts versus newer chain facilities in the same neighbourhood, primarily because their tax basis is lower.