Scores by category

Each category averages its indicators' percentile scores among US cities and towns.

Safety77#3,579/15,637
Economy21#12,329/15,631
Housing80#2,976/14,977
Health45#8,571/15,609
Healthcare29#11,167/15,650
Environment42#8,999/15,453
Education13#13,654/15,649
Infrastructure34#10,310/15,650
Community51#7,716/15,651
Leisure & amenities55#7,003/15,651

Strengths · Weaknesses

Indicators where Monmouth, Illinois ranks highest and lowest among US cities and towns (score = percentile, 100 = best). Values marked “Warren County value” are the county’s: the source publishes no figure for this city or town, and the county holding most of its residents stands in.

Strengths

Home price to income ratio · low1.4×
99/100Illinois 3.2×United States 4.1×2020-2024U.S. Census Bureau Census table B25077
Drug overdose deaths · low0.0 /100k
99/100Illinois 14.2 /100kUnited States 18.4 /100kMar 2025–Feb 2026Centers for Disease Control and PreventionProvisional dataWarren County value
Grocery stores · high3.7 /10k
98/100Illinois 1.9 /10kUnited States 1.7 /10k2025U.S. Bureau of Labor StatisticsWarren County value
Restaurants and bars · high14.8 /10k
95/100Illinois 10.3 /10kUnited States 9.0 /10k2025U.S. Bureau of Labor StatisticsWarren County value
Rent as share of income · low20.4%
95/100Illinois 29.1%United States 30.6%2020-2024U.S. Census Bureau Census table B25071
Public libraries · high2.5 /10k
94/100Illinois 0.6 /10kUnited States 0.5 /10k2024Institute of Museum and Library ServicesWarren County value

Weaknesses

Public EV charging ports · low0.0 /10k
3/100Illinois 4.8 /10kUnited States 7.6 /10kOct 2026U.S. Department of EnergyWarren County value
Gyms and fitness centers · low0.0 /10k
4/100Illinois 1.1 /10kUnited States 1.3 /10k2025U.S. Bureau of Labor StatisticsWarren County value
Mental health providers · low43 /100k
5/100Illinois 355 /100kUnited States 348 /100k2025University of Wisconsin Population Health InstituteWarren County value
Average weekly wage · low$889
5/100Illinois $1,539United States $1,5142025U.S. Bureau of Labor StatisticsWarren County value
Flu vaccinations · low29.0%
7/100Illinois 48.0%United States 44.0%2023University of Wisconsin Population Health InstituteWarren County value
Reading scores · low2.67
8/100Illinois 2.97United States 3.052019University of Wisconsin Population Health InstituteWarren County value

Trends

The largest changes over about five years, next to the country's over the same periods.

Child poverty rateWorsening
22.5% (2015-2019) → 31.0% (2020-2024)
+8.5 pts5 yearsCensus table B17001US 16.8% → 15.5%
Unemployment rateImproving
11.6% (2015-2019) → 3.6% (2020-2024)
−8 pts5 yearsCensus table B23025US 3.7% → 4.0%
Median household incomeImproving
$44,037 (2015-2019) → $61,138 (2020-2024)
+39%5 yearsCensus table B19013US $65,712 → $81,604
Broadband subscriptionsImproving
80.6% (2015-2019) → 85.6% (2020-2024)
+5.1 pts5 yearsCensus table B28002US 82.7% → 91.0%
Bachelor's degree or higherWorsening
22.9% (2015-2019) → 18.3% (2020-2024)
−4.6 pts5 yearsCensus table B15003US 32.1% → 35.7%
Rent as share of incomeImproving
24.1% (2015-2019) → 20.4% (2020-2024)
−3.7 pts5 yearsCensus table B25071US 29.8% → 30.6%

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Over about five years, Monmouth, Illinois improved on 3 of 14 measures with a comparison and declined on 0. 11 moved within the margin of error and 0 barely changed.

Earlier (2015-2019)
Latest (2020-2024)
Lower standingHigher standing

Position is the place's standing among cities and towns: further right is better, whichever way the measure counts.

Improved3

Unemployment−8 points11.6% → 3.6%
Household income+39%$44,037 → $61,138
Broadband+5.1 points80.6% → 85.6%

Declined0

No measure declined by more than its margin of error.

All 14 measures

Change of every measure of Monmouth, Illinois between two periods about five years apart
Measure	Before	After	Change	Reading	Favourable vs peers
Average commute time	16.0 min2015-2019	15.5 min2020-2024	−0.6 min	Within the margin of error	55%
Bachelor's degree or higher	22.9%2015-2019	18.3%2020-2024	−4.6 points	Within the margin of error	8%
Broadband subscriptions	80.6%2015-2019	85.6%2020-2024	+5.1 points	Improved	32%
Child poverty rate	22.5%2015-2019	31.0%2020-2024	+8.5 points	Within the margin of error	14%
Effective property tax rate	2.13%2015-2019	1.85%2020-2024	−0.3 points	Within the margin of error	72%
High school diploma or higher	81.0%2015-2019	84.0%2020-2024	+3 points	Within the margin of error	68%
Home price to income ratio	1.7×2015-2019	1.4×2020-2024	−0.3×	Within the margin of error	89%
Income inequality (Gini index)	0.4182015-2019	0.4402020-2024	+0.021	Within the margin of error	33%
Median household income	$44,0372015-2019	$61,1382020-2024	+39%	Improved	72%
Poverty rate	16.4%2015-2019	17.7%2020-2024	+1.3 points	Within the margin of error	32%
Rent as share of income	24.1%2015-2019	20.4%2020-2024	−3.7 points	Within the margin of error	77%
Rent-burdened households	37.5%2015-2019	37.1%2020-2024	−0.4 points	Within the margin of error	58%
Unemployment rate	11.6%2015-2019	3.6%2020-2024	−8 points	Improved	99%
Uninsured residents (under 65)	5.9%2015-2019	6.4%2020-2024	+0.5 points	Within the margin of error	40%

“Against peers” compares the change with the same change in the 14640 cities and towns that have the same two periods. It describes how common a change is, not why it happened.

Sources: American Community Survey 5-Year Estimates. Values are the latest and the one five years earlier of the same publisher dataset; datasets that changed publisher in between are never compared.

Survey estimates (American Community Survey) compare the two most recent 5-year windows that do not share years, so the margin of error of the difference holds. The 2015-2019 window predates the pandemic and 2020-2024 includes it.
A change counts only when it is larger than 1.645 times the square root of the two standard errors squared, summed (a 90% margin). Measures published without a margin must change by at least 5% to count.
“Against peers” compares the change with the same change in the 15651 cities and towns that have the same two periods. It describes how common a change is, not why it happened.
Standing is a percentile among the same places: 0 is the lowest value on the measure (or the worst when lower is better), 100 the best.

Cities and towns like Monmouth, Illinois five years ago that improved

The places whose measures looked most like those of Monmouth, Illinois in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

For comparison, Monmouth, Illinois itself moved −3.5 points in standing on average over the same 10 measures (standings of all places average about zero).

How the ranking works

Similarity is the root-mean-square difference of standings in the earlier period over the measures most places have. Places are ranked by measures that improved beyond the margin of error minus those that declined (a count that estimation noise in small places cannot inflate), then by the mean change of standing over the measures a place has in both periods. Only places with more improvements than declines and a rise in standing are listed. Standings are relative, so a place can improve in absolute terms and still lose standing.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Age and sex

8,581 residents (±285)

Men
Women

80 and over†
70–79†
60–69†
50–59
40–49†
30–39
20–29
10–19
Under 10

Share of all residents, each sex

No change since 2015–2019 is larger than the margin of error.

† Wide margin of error (more than 30% of the estimate): read with care.

Table view

American Community Survey 5-year estimates, 2020–2024 · Table B01001View table on data.census.gov

Race and Hispanic origin

8,581 residents (±285)

Monmouth, Illinois
Illinois share

White70%6,045
Black4.5%†382
Hispanic or Latino18%1,549

Education

5,056 residents (±232)

Monmouth, Illinois
Illinois share

No high school diploma16%810
High school or GED36%1,797
Some college21%1,058

Counts are survey estimates, each with a margin of error. The grouping into ranges is ours; every count is the Census Bureau's.

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Household income

3,323 households (±258)

Monmouth, Illinois
Illinois share

Under $25k16%547
$25k–50k26%853
$50k–75k19%643
$75k–100k15%499
$100k–150k15%†508
$150k–200k4.6%†154
$200k or more3.6%†119

Biggest shift since 2015–2019: Under $25k (−8.4 points).

† Wide margin of error (more than 30% of the estimate): read with care.

Table view

American Community Survey 5-year estimates, 2020–2024 · Table B19001View table on data.census.gov

Counts are survey estimates, each with a margin of error. The grouping into ranges is ours; every count is the Census Bureau's.

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Owners and renters

3,323 households (±258)

Monmouth, Illinois
Illinois share

Own66%2,202
Rent34%1,121

No change since 2015–2019 is larger than the margin of error.

Table view

American Community Survey 5-year estimates, 2020–2024 · Table B25003View table on data.census.gov

Rent paid

932 households (±190)

Monmouth, Illinois
Illinois share

Under $75053%†492
$750–1,00022%†202
$1,000–1,50016%†148

Home values

2,202 homes (±208)

Monmouth, Illinois
Illinois share

Under $150k81%1,791
$150k–250k16%†343
$250k–400k1.1%†25

Age of homes

3,750 homes (±212)

Monmouth, Illinois
Illinois share

2010 or later1.2%†44
2000–20093.8%†144
1980–19996.9%†257

Size of homes

3,750 homes (±212)

Monmouth, Illinois
Illinois share

Studio2.6%†99
1 bedroom12%†445
2 bedrooms24%884

Counts are survey estimates, each with a margin of error. The grouping into ranges is ours; every count is the Census Bureau's.

Getting to work

How workers travel to their job and how long it takes them.

How people get to work

4,077 workers (±296)

Monmouth, Illinois
Illinois share

Drive alone75%3,057
Carpool7.8%†319
Public transit1.3%†51
Walk6.5%†267
Bike0.2%†7
Work from home7.5%†306
Other1.7%†70

Biggest shift since 2015–2019: Work from home (+5.1 points).

† Wide margin of error (more than 30% of the estimate): read with care.

Table view

American Community Survey 5-year estimates, 2020–2024 · Table B08301View table on data.census.gov

Time to get to work

3,771 workers (±306)

Monmouth, Illinois
Illinois share

Under 15 min69%2,585
15–29 min17%655
30–44 min6.8%†256

Counts are survey estimates, each with a margin of error. The grouping into ranges is ours; every count is the Census Bureau's.

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

The Census Bureau publishes business counts by county, not by city, so these are the figures of Warren County, the county holding most of Monmouth's residents.

Warren County has 351 employer establishments, 217 for every 10,000 residents (0.87× the US rate of 248; 0.85× Illinois's), with 5,447 paid employees at an average annual pay of $44,961. The Census Bureau also counts 930 nonemployer businesses, mostly sole proprietors.

Establishments: 351; 930 nonemployers
Per 10,000 residents: 217; US 248 · Illinois 255
Paid employees: 5,447
Average annual pay: $44,961; US $68,342

Employer establishments, employees, average pay and nonemployers of Warren County by industry, with the density per resident against the nation

Restaurants and other eating places	26	16.1	0.88×About typical	353	$20,082	7
Truck transportation	21	13	2.57×More than typical	126	$55,214	18
Specialty trade contractors	20	12.4	0.80×Fewer than typical	68	$50,250	89
Religious organizations	18	11.1	2.01×More than typical	91	$18,835	—
Ambulatory health care services	15	9.3	0.45×Fewer than typical	89	$59,404	11
Full-service restaurants	14	8.7	1.13×About typical	133	$18,887	—
Automotive repair and maintenance	10	6.2	1.23×About typical	41	$40,146	12
Drinking places (alcoholic beverages)	10	6.2	5.10×More than typical	22	$15,136	6
Limited-service restaurants	10	6.2	0.77×Fewer than typical	205	$20,576	—
Building equipment contractors	9	5.6	0.93×Too few to compare	42	$45,762	12
Legal services	9	5.6	1.04×Too few to compare	23	$28,565	—
Construction of buildings	8	5	0.65×Too few to compare	13	$39,000	44

Rank places for an industry Open Warren County

County Business Patterns (2023); Nonemployer Statistics (2024)

Per-resident figures divide by the population estimate of 2023: 16,159 residents here, 336,755,052 in the United States. County Business Patterns counts establishments in 2023; the Nonemployer Statistics count businesses in 2024.
“More than typical” is a density at least 1.25 times the nation's per resident, “fewer” at most 0.8 times, with at least 10 establishments. It compares counts of businesses with counts of people: it says nothing about demand, incomes, size, quality or profit, and visitors and commuters are not residents.
The Census Bureau adds noise to employment and payroll to protect confidentiality, and withholds some figures: an industry with few establishments can show employees or pay as unavailable.
Industries overlap: a narrower industry (full-service restaurants) is part of a broader one (restaurants), so the rows do not add up.
Industries follow the North American Industry Classification System; the two surveys use different editions (NAICS 2017 and 2022), which this page matches industry by industry.

Federal contracts performed here

In FY2026, an estimated $155 of federal contract obligations were for work performed in Monmouth, Illinois: $0.02 per resident (US $1,994).

Obligations: $155
Per resident: $0.02; US $1,994
Sole-source: 100%; US 30%
Single offer: 0.0%; US 8.8%

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Top buying agencies

U.S. Geological Survey$155100%

Top recipients

WESTERN ILLINOIS SCIENTIFIC, ENGINEERING AND EDUCATIONAL RESEARCH, LLC$155100%

Spending by fiscal year

69.8FY2017
229.7FY2018
300.4FY2019
2.8KFY2020
114.4FY2021
1.8KFY2023
-4KFY2025
155.2FY2026

Top industries (NAICS)

Architectural, engineering, and related services · 5413$155100%

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 3, 2026, loaded Oct 3, 2026.

How this is estimated

Agencies report each contract action's place of performance as a county and a ZIP code. A ZIP code's money is split among the cities it covers by the share of its land inside each (Census 2020 ZIP code tabulation areas); the part outside city limits stays with the county.

The place of performance is what the contracting agency reports, often the contractor's office rather than where the work happens.
Shares are of land, not of people or businesses: a ZIP code that is mostly rural land but has its offices in town gives the town less than it should.
ZIP codes that are not mapped areas (post office boxes, the unique ZIP codes of large federal sites and companies) stay with their county, unless one city covers nearly all of it.
Counts of actions and awards include those only partly in Monmouth, Illinois, so they do not add up across cities.

Monmouth, Illinois's figures are part of those of Warren County, IL ($5,000 in FY2026), never added to them: 3.1% of that total.

Grants and other federal assistance are counted by county here, not split among cities: Monmouth is mostly in Warren County.

See federal money in Warren County

Representation in Congress

Members serving today, with their record in the current Congress (party-unity votes cast with their caucus, roll calls missed). Not a grade.

Monmouth, Illinois is split between congressional districts: each representative is shown with the share of its residents in their district (current boundaries).

House

Senate

Explore Congress The 2026 races

County

A city can lie in several counties. Some indicators are published for counties only: the page marks them.

Warren County57100% of residents

Other cities and towns in Warren County

Largest first.

Similar cities and towns

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

PLACES: Local Data for Better HealthCenters for Disease Control and Prevention · release 2025
Local Area Unemployment StatisticsU.S. Bureau of Labor Statistics · release 2025
American Community Survey 5-Year EstimatesU.S. Census Bureau · release 2017-2024
Building Permits SurveyU.S. Census Bureau · release 2026-08
Population Estimates ProgramU.S. Census Bureau · release 2025
Small Area Health Insurance EstimatesU.S. Census Bureau · release 2024
Small Area Income and Poverty EstimatesU.S. Census Bureau · release 2024
County Health Rankings & RoadmapsUniversity of Wisconsin Population Health Institute · release 2022-2025+2026-03-supplement

JSON · /api/v1/places/1750010

Scores by category

Strengths · Weaknesses

Strengths

Weaknesses

Trends