Naperville, IL vs Joliet, IL
Side-by-side fiscal comparison · U.S. Census Bureau data (2023)
Joliet, IL spends 19% more per resident than Naperville, IL: $18,675 against $15,751. That gap is large enough to show up across most functional budget categories below.
Naperville, IL edges Joliet, IL on the Fiscal Health Score by 5 points — 45/100 (grade D) to 40/100 (grade D). At a margin this narrow the grade is close enough that the factor-level detail matters more than the composite.
On debt, Naperville, IL carries the lighter load at $1,028 per resident versus $4,260 for Joliet, IL. Their budgets diverge on where the largest per-resident dollars go: Naperville, IL leads with health at $1,028 per resident, while Joliet, IL leads with parks and recreation at $459.
They also fund themselves differently: charges and fees is the largest single revenue source in Naperville, IL at 68% of total revenue, whereas Joliet, IL relies most on intergovernmental transfers at 92%.
Summary
Joliet spends 15.7% more per capita than Naperville ($2,924/person difference). Naperville, IL has the stronger Fiscal Health Score (D, 45/100).
Fiscal Health Score
Key Metrics
Per Capita Spending by Department
Revenue Breakdown (Per Capita)
| Sales Tax | $0 | $323 |
| Income Tax | $0 | $1,006 |
| Intergovernmental | $458 | $12,066 |
| Charges & Fees | $4,765 | $2,156 |
| Other | $2,388 | $3,429 |
Spending Breakdown (Per Capita)
| Fire Protection | $0 | $208 |
| Highways & Roads | $0 | $165 |
| Public Welfare | $0 | $2,118 |
| Health | $1,028 | $450 |
| Hospitals | $0 | $485 |
| Parks & Recreation | $544 | $459 |
| Housing | $0 | $3,292 |
| Sewerage | $0 | $94 |
| Utilities | $4,527 | $3,400 |
| Other | $9,652 | $8,005 |
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Source: Census Annual Survey of State and Local Government Finances, 2026.