Rock Falls, IL demographics:
population, income, and more

Total population
8,587
-1.1% year-over-year change
Median household income
$49,600/yr
1.8% year-over-year change
Housing units
4,362
-2.4% year-over-year change

Rock Falls population

How many people live in Rock Falls

Rock Falls is home to 8,587 residents, according to the most recent Census data. Gender-wise, 49.5% of Rock Falls locals are male, and 50.5% are female.

Total population
8,587
-1.1% year-over-year change
Gender ratio
Male
49.5%
4,248
Female
50.5%
4,339
Value Percent YoY change
Male 4,248 49.5% 1.5%
Female 4,339 50.5% -3.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Rock Falls is 38, with the population distributed as follows: about 20.5% are children under 15, then 10.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.2% of the population, while another 23.6% fall into the 45 to 64 bracket. Finally, around 19.5% are 65 or older.

Median age
37.7
Age breakdown
Under 15
20.5%
15 to 24
10.2%
25 to 44
26.2%
45 to 64
23.6%
Over 65
19.5%
Value Percent YoY change
Under 15 1,761 20.5% 10.6%
15 to 24 878 10.2% -20.0%
25 to 44 2,247 26.2% 9.2%
45 to 64 2,026 23.6% -9.6%
Over 65 1,675 19.5% -1.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Rock Falls, 94.6% of the population are US-born citizens, while 3.1% have gained naturalized citizenship. At the same time, 2.3% of residents are non-citizens. As for race, 79.3% of locals are Caucasian, 0.4% are African American and 0.1% have Asian roots. There’s also a share of 14.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
94.6%
Non-U.S.-born citizens
3.1%
Non-citizens
2.3%
Value Percent YoY change
U.S.-born citizens 8,122 94.6% -2.2%
Non-U.S.-born citizens 264 3.1% 31.3%
Non-citizens 201 2.3% 11.7%
Racial breakdown
White
79.3%
Black or African American
0.4%
American Indian and Alaska Native
1.3%
Asian
0.1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
14.7%
Other
4.2%
Value Percent
White 6,807 79.3%
Black or African American 36 0.4%
American Indian and Alaska Native 115 1.3%
Asian 5 0.1%
Two or more races 1,263 14.7%
Other 361 4.2%

Households in Rock Falls

A peek inside Rock Falls households

Rock Falls has 3,797 households, with an average of 2 members in each. Of these, 53.7% are families, while the remaining 46.3% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
3,797
-3.0% year-over-year change
Average people per household
2
Non-family households
1,758
Family households
2,039
Value Percent YoY change
Non-family households 1,758 46.3% -4.9%
Family households 2,039 53.7% -1.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Rock Falls

The housing landscape of Rock Falls

Rock Falls's housing consists of 4,362 units, with 77.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 0.8% of the housing landscape.

Housing units
4,362
-2.4% year-over-year change
Housing types
Value Percent
1 unit, detached 3,377 77.4%
1 unit, attached 42 1%
2 units 134 3.1%
3 or 4 units 404 9.3%
5 to 9 units 98 2.2%
10 to 19 units 79 1.8%
20 to 49 units 48 1.1%
50 or more units 146 3.4%
Mobile home 34 0.8%
Homes built since 2020
25
% year-over-year change

The age of buildings in Rock Falls

In Rock Falls, the median construction year is 1961. About 22.4% of homes were built before the 1940s, with another 7.7% going up by 1949. Most development happened in the second half of the 20th century. Then, 0.9% of homes were added from 2000 to 2009, 3.5% between 2010 and 2019, and 0.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 977 22.4% -10.6%
Built between 1940 and 1949 336 7.7% -0.6%
Built between 1950 and 1959 804 18.4% -8.8%
Built between 1960 and 1969 467 10.7% -15.2%
Built between 1970 and 1979 1,097 25.2% 15.6%
Built between 1980 and 1989 170 3.9% -16.3%
Built between 1990 and 1999 292 6.7% 2.8%
Built between 2000 and 2009 41 0.9% -62.0%
Built between 2010 and 2019 153 3.5% 142.9%
Built in 2020 or later 25 0.6% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Rock Falls occupancy rates

Out of the 3,797 occupied housing units in Rock Falls, 67.4% are owner-occupied, while 32.6% are lived in by tenants. Meanwhile, 13% of all homes on the local market sit vacant.

Occupied housing units
3,797
-3.0% year-over-year change
Occupancy breakdown
Renter occupied
1,237
Owner occupied
2,560
Value Percent YoY
change
Renter occupied 1,237 32.6% -8.0%
Owner occupied 2,560 67.4% -0.3%
Unoccupied housing units
13.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Rock Falls housing costs

Housing costs in Rock Falls come to a median of $828 per month, while tenants specifically pay a median gross rent of $754.

Median housing costs per month
$828/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Rock Falls
$754/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Rock Falls

Rock Falls education at a glance

About 45.3% of the population in Rock Falls went to high school, while 22.9% pursued college studies. Another 13.8% earned an associate degree and 10% hold a bachelor’s. Meanwhile, 3.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 306 4.7% 20.0%
High school diploma 2,963 45.3% -0.6%
College diploma 1,499 22.9% -10.3%
Associate degree 901 13.8% 9.9%
Bachelor's degree 657 10% -10.0%
Graduate degree 221 3.4% -12.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Rock Falls

How much people earn in Rock Falls

The average annual household income in Rock Falls was $71,794 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +6.6% change from the previous year. At the same time, the median income stood at $49,600, reflecting a +1.8% shift over the same period.

Average household income in Rock Falls
$71,794/year
6.6% year-over-year change
Median household income in Rock Falls
$49,600/year
1.8% year-over-year change

Rock Falls income by age

In Rock Falls, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $51,042. Those with someone between 45 and 64 in charge, often well established professionally, earn $59,762 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $30,625, while those led by someone over 65, many of whom may be retired, have about $38,662 in earnings. Overall, 74.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $30,625 15.3%
25 - 44 $51,042 3.9%
45 - 64 $59,762 -1.1%
Over 65 $38,662 -0.0%
Above poverty level
6,258
Below poverty level
2,146
Value Percent YoY
change
Above poverty level 6,258 74.5% -4.9%
Below poverty level 2,146 25.5% 10.6%

Average renter income in Rock Falls

To get a better sense of what renters earn on average in Rock Falls, their median household income was $23,525 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 38.5%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$23,525
Rent-to-income ratio
38.5%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Rock Falls

Workforce and job types in Rock Falls

The job market in Rock Falls is powered by 3,953 working residents, spread across a range of industries and roles. 55.9% of the working population are employed in professional or administrative positions, while 44.1% are in hands-on or service-based jobs. Also, 6.7% run their own businesses, 73.7% are employed by private companies, and 10.2% work in the public sector.

Workforce demographics

Working population
3,953
-4.0% year-over-year change
White collar
2,210
Blue collar
1,743
Value Percent YoY change
White collar 2,210 55.9% -10.7%
Blue collar 1,743 44.1% 6.2%
Employer type
Self employees
6.7%
Private companies
73.7%
Governmental workers
10.2%
Not for profit companies
9.4%
Value Percent YoY change
Self employees 264 6.7% 0.0%
Private companies 2,913 73.7% -0.3%
Governmental workers 405 10.2% -25.7%
Not for profit companies 371 9.4% -4.4%
Unemployment rate
6.6%
16.8% year-over-year change

Available workforce

The unemployment rate in Rock Falls stands at 6.6%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Rock Falls

How people get around in Rock Falls

Commuting methods vary: 87.9% of residents travel by personal vehicle and 1.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 3,235 87.9% -11.4%
Bus or trolleybus 40 1.1% 81.8%
Bicycle 72 2% N/A
Walk 69 1.9% 228.6%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Rock Falls by zipcode?

Zipcode Population Number of households Median income Average income
61071 13,581 5,810 $60,508 $79,916

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FAQs about Rock Falls demographics 

What is the total population of Rock Falls?

Rock Falls has a total population of 8,587 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.1% compared to a year ago.

What is the gender ratio in Rock Falls?

The gender ratio in Rock Falls is as follows:
  • 49.5% males (4,248 residents)
  • 50.5% females (4,339 residents)

What is the median age in Rock Falls?

The median age in Rock Falls is 37.7.

What is the age distribution of the population in Rock Falls?

The age distribution in Rock Falls is as follows:
  • Under 15: 20.5% (1,761 residents)
  • Ages 15-24: 10.2% (878 residents)
  • Ages 25-44: 26.2% (2,247 residents)
  • Ages 45-64: 23.6% (2,026 residents)
  • Over 65: 19.5% (1,675 residents)

What is the racial and ethnic makeup of Rock Falls?

The racial and ethnic makeup of Rock Falls is as follows:
  • White: 79.3% (6,807 residents)
  • Black or African American: 0.4% (36 residents)
  • American Indian and Alaska Native: 1.3% (115 residents)
  • Asian: 0.1% (5 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 14.7% (1,263 residents)
  • Other: 4.2% (361 residents)

What percentage of the population in Rock Falls are U.S.-born citizens?

U.S.-born citizens represent 94.6% of the population in Rock Falls.

How many housing units are there in Rock Falls?

There are 4,362 housing units in Rock Falls, reflecting a -2.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Rock Falls and what is the average household size?

Rock Falls has a total of 3,797 households, with an average of 2 people in each.

What is the median household income in Rock Falls?

Rock Falls has a median household income of $49,600, representing a +1.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Rock Falls?

The employment rate is 93.4% in Rock Falls, with a workforce of 3,953 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 55.9% (2,210 residents)
  • Blue-collar workers: 44.1% (1,743 residents)

Places of employment:
  • Self-employed: 6.7% (264 residents)
  • Private companies: 73.7% (2,913 residents)
  • Governmental workers: 10.2% (405 residents)
  • Not-for-profit companies: 9.4% (371 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025