Rock Falls, Illinois Population 2024

8,398

Rock Falls is a city located in Whiteside County Illinois. Rock Falls has a 2024 population of 8,398. Rock Falls is currently declining at a rate of -1.3% annually and its population has decreased by -4.24% 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.

Rock Falls Demographics

According to the most recent ACS, the racial composition of Rock Falls was:

  • White: 83.37%
  • Two or more races: 12.06%
  • Other race: 3.65%
  • Black or African American: 0.38%
  • Native American: 0.34%
  • Asian: 0.2%
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
4.0 sq mi
Density (mi²)
2,108.60/sq mi
Growth Since 2020
-4.24% (-372)
The current population of Rock Falls, Illinois is 8,398 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 8,770.

Rock Falls, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White7,42383.37%
Two or more races1,07412.06%
Other race3253.65%
Black or African American340.38%
Native American300.34%
Asian180.2%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Rock Falls Population by Race

Rock Falls Population Pyramid 2024

Rock Falls Median Age

38.2

Total

37.7

Male

39.3

Female

Rock Falls Adults

There are 6,824 adults, (1,625 of whom are seniors) in Rock Falls.

Rock Falls Age Dependency

71.3

Age Dependency Ratio

31.3

Old Age Dependency Ratio

40

Child Dependency Ratio

Rock Falls Sex Ratio

Female4,63152.01%
Male4,27347.99%

Rock Falls Population by Age

Rock Falls Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All3,9692.2164.935.1
Non Family1,8771.2164.435.6
Married1,1333.038317
Female7463.2341.858.2
Male2133.185446
showing: 5 rows

2.95

Average Family Size

2.21

Average Household Size

64.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Rock Falls Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Rock Falls Educational Attainment by Sex (over 25)

Rock Falls Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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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%.

Rock Falls Educational Attainment by Race

All

Male

Female

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$38,371

Average Earnings

$46,732

Average Male

$26,363

Average Female

Rock Falls Earnings by Educational Attainment

Rock Falls Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Rock Falls Language

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.

Rock Falls Language

Rock Falls Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White6,6001,14517.35%
Hispanic1,90872738.1%
Multiple1,07460856.61%
Other3256018.46%
Black23730.43%
Asian18211.11%
showing: 6 rows

21.96%

Overall Poverty Rate

17.18%

Male Poverty Rate

26.36%

Female Poverty Rate

Poverty in Rock Falls

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%.

Rock Falls Poverty

rate

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Rate
Poverty
Less Than 9th Grade26.52%
Some College16.12%
High School14.12%
Bachelors or Greater5.13%
showing: 4 rows

Rock Falls Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed51.02%
Male Unemployed36.89%
Female Employed20.22%
Male Employed3.85%
showing: 4 rows

Rock Falls Poverty Rate by Employment Status and Sex

Rock Falls Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Rock Falls Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

36.3%

Overall Marriage Rate

36.7%

Male Marriage Rate

35.9%

Female Marriage Rate

Rock Falls Married by Age and Sex

male

female

Rock Falls Marriage

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.

Rock Falls Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Rock Falls Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

697

Number of Veterans

683

Male Veterans

14

Female Veterans

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Rock Falls Veterans by War

count

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Rock Falls Veterans by Age

count

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Rock Falls Veterans by Race

Rock Falls Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.89%

Veteran Poverty Rate

33.43%

Veteran Disability Rate

Rock Falls Veterans by Education

LaborForceParticipation

64.2%

Labor Force Participation

61.3%

Employment Rate

4.4%

Unemployment Rate

Rock Falls Employment by Age

LaborForceParticipation

Rock Falls Employment by Race

LaborForceParticipation

Rock Falls Employment by Education

Origin of Non-Citizens

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.

Origin of Naturalized Citizens

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

Place of Birth

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.

Rock Falls Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20297,843-111-1.4%
20287,954-111-1.38%
20278,065-111-1.36%
20268,176-111-1.34%
20258,287-111-1.32%
20248,398-111-1.3%
20238,509-111-1.29%
20228,620-111-1.27%
20218,731-39-0.44%
20208,770240.27%
20198,746-53-0.6%
20188,799-96-1.08%
20178,895-85-0.95%
20168,980-81-0.89%
20159,061-22-0.24%
20149,083-116-1.26%
20139,199-59-0.64%
20129,258-95-1.02%
20119,353-41-0.44%
20109,394-186-1.94%
20009,580-74-0.77%
19909,654-979-9.21%
198010,6333463.36%
197010,287260.25%
196010,2612,27828.54%
19507,9832,99660.08%
19404,9871,09428.1%
19303,89396633%
19202,92727010.16%
19102,657
showing: 30 rows

Rock Falls Population by Year