What is the cost of living in Monmouth, IL?
According to the most recent data on the cost of living, Monmouth has an overall cost of living index of 85, which is 0.8x lower than the national index of 100.
Compared to Illinois, Monmouth has a cost of living index that's 0.9x lower than Illinois's index of 98.
The standard of living in Monmouth ranks as #27 most affordable out of the 336 places we measured in Illinois. By definition, that implies Monmouth ranks as the #309 most expensive place in the Prairie State.
For more reading on life in Monmouth, check out:
Monmouth Cost Of Living Vs. Illinois
Six factors go into calculating the cost of living index in Monmouth. Here is how it fares on each of the criteria:
The Services index in Monmouth is 102.
The Groceries index in Monmouth is 100.
The Health index in Monmouth is 49.
The Housing index in Monmouth is 102.
The Transportation index in Monmouth is 95.
The Utilities index in Monmouth is 97.
| Living Expense | Monmouth | Illinois | National Average |
|---|---|---|---|
| Overall | 85 | 98 | 100 |
| Services | 102 | 99 | 100 |
| Groceries | 100 | 99 | 100 |
| Health | 49 | 96 | 100 |
| Housing | 102 | 101 | 100 |
| Transportation | 95 | 99 | 100 |
| Utilities | 97 | 101 | 100 |
Monmouth Cost Of Living Compared To Illinois Averages
Index where 100 = national average. Source: cost-of-living index 2026.
For more reading on cost of living around Illinois, check out:
Protect your home budget Compare home warranties in Monmouth Get matched →Source: Cost-of-living index 2026, normalized to US average = 100
Monmouth, IL Housing Cost Breakdown
Housing swings affordability the most between places in Illinois, so we broke down housing costs into more detail. Home and income data comes from the most recent US Census ACS 2020-2024. The key points are:
The Median Home Value in Monmouth is $105,664.
The Median Rent in Monmouth is $733.
The Median Income in Monmouth is $61,138.
The Home Value To Income in Monmouth is 1.7x.
The Rent To Monthly Income in Monmouth is 0.14x.
Monmouth, IL Costs By Category
Detailed Monmouth Services costs vs. Illinois
Detailed Monmouth Groceries costs vs. Illinois
Detailed Monmouth Health costs vs. Illinois
Detailed Monmouth Transportation costs vs. Illinois
Monmouth SnackAbility
Cost Of Living In Cities Around Monmouth
The cost of living varies in the cities and towns around Monmouth. Here's a quick look at the cost of living in the most populous nearby places:
Moline, IL has a cost of living index of 91, 1.1x Monmouth.
Bettendorf, IA has a cost of living index of 104, 1.2x Monmouth.
Rock Island, IL has a cost of living index of 90, 1.1x Monmouth.
| City | Population | Cost Of Living | Vs. Monmouth |
|---|---|---|---|
| Moline, IL | 42,197 | 91 | 1.1x |
| Bettendorf, IA | 39,647 | 104 | 1.2x |
| Rock Island, IL | 36,151 | 90 | 1.1x |
| Galesburg, IL | 29,481 | 84 | 1.0x |
| East Moline, IL | 20,904 | 91 | 1.1x |
| Macomb, IL | 14,894 | 88 | 1.0x |
| Kewanee, IL | 11,913 | 81 | 1.0x |
| Silvis, IL | 7,955 | 91 | 1.1x |
| Geneseo, IL | 6,673 | 92 | 1.1x |
| Colona, IL | 5,139 | 90 | 1.1x |
