Rock Falls is a city located in Lee County and Whiteside County Illinois. Rock Falls has a 2024 population of 8,470. Rock Falls is currently declining at a rate of -0.88% annually and its population has decreased by -3.42% since the most recent census, which recorded a population of 8,770 in 2020.
The average household income in Rock Falls is $68,567 with a poverty rate of 21.96%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Rock Falls is 38.2 years, 37.7 years for males, and 39.3 years for females.
According to the most recent ACS, the racial composition of Rock Falls was:
White
Two or more races
Other race
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 3,969 | 2.21 | 64.9 | 35.1 |
| Non Family | 1,877 | 1.21 | 64.4 | 35.6 |
| Married | 1,133 | 3.03 | 83 | 17 |
| Female | 746 | 3.23 | 41.8 | 58.2 |
| Male | 213 | 3.18 | 54 | 46 |
2.95
Average Family Size
2.21
Average Household Size
64.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among asian people with a rate of 100%.
The highest rate of bachelors degrees is among white people with a rate of 16.96%.
All
Male
Female
$38,371
Average Earnings
$46,732
Average Male
$26,363
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
88.38% of Rock Falls residents speak only English, while 11.62% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.2% of the population.
rate
21.96%
Overall Poverty Rate
17.18%
Male Poverty Rate
26.36%
Female Poverty Rate
The race most likely to be in poverty in Rock Falls is Multiple, with 56.61% below the poverty level.
The race least likely to be in poverty in Rock Falls is Asian, with 11.11% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 8.25%. Among those working part-time, it was 23.64%, and for those that did not work, the poverty rate was 21.55%.
Married
Widowed
Divorced
Separated
NeverMarried
36.3%
Overall Marriage Rate
36.7%
Male Marriage Rate
35.9%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.89%
Veteran Poverty Rate
33.43%
Veteran Disability Rate
LaborForceParticipation
64.2%
Labor Force Participation
61.3%
Employment Rate
4.4%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
83.83%
Born in Rock Falls
96.33%
Native Born
3.67%
Foreign Born
1.83%
Non Citizen
1.84%
Naturalized
96.33% of Rock Falls residents were born in the United States, with 83.83% having been born in Illinois. 1.83% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 8,095 | -75 | -0.92% |
| 2028 | 8,170 | -75 | -0.91% |
| 2027 | 8,245 | -75 | -0.9% |
| 2026 | 8,320 | -75 | -0.89% |
| 2025 | 8,395 | -75 | -0.89% |
| 2024 | 8,470 | -75 | -0.88% |
| 2023 | 8,545 | -75 | -0.87% |
| 2022 | 8,620 | -111 | -1.27% |
| 2021 | 8,731 | -39 | -0.44% |
| 2020 | 8,770 | 24 | 0.27% |
| 2019 | 8,746 | -53 | -0.6% |
| 2018 | 8,799 | -96 | -1.08% |
| 2017 | 8,895 | -85 | -0.95% |
| 2016 | 8,980 | -81 | -0.89% |
| 2015 | 9,061 | -22 | -0.24% |
| 2014 | 9,083 | -116 | -1.26% |
| 2013 | 9,199 | -59 | -0.64% |
| 2012 | 9,258 | -95 | -1.02% |
| 2011 | 9,353 | -41 | -0.44% |
| 2010 | 9,394 | -186 | -1.94% |
| 2000 | 9,580 | -74 | -0.77% |
| 1990 | 9,654 | -979 | -9.21% |
| 1980 | 10,633 | 346 | 3.36% |
| 1970 | 10,287 | 26 | 0.25% |
| 1960 | 10,261 | 2,278 | 28.54% |
| 1950 | 7,983 | 2,996 | 60.08% |
| 1940 | 4,987 | 1,094 | 28.1% |
| 1930 | 3,893 | 966 | 33% |
| 1920 | 2,927 | 270 | 10.16% |
| 1910 | 2,657 | 0 | 0% |