Rock City is a city located in Stephenson County Illinois. Rock City has a 2024 population of 285. Rock City is currently declining at a rate of -0.7% annually and its population has decreased by -3.39% since the most recent census, which recorded a population of 295 in 2020.
The average household income in Rock City is $72,322 with a poverty rate of 7.69%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Rock City is 38 years, 30 years for males, and 44.6 years for females.
According to the most recent ACS, the racial composition of Rock City was:
White
Other race
Two or more races
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 124 | 2.73 | 83.1 | 16.9 |
| Married | 54 | 2.89 | 100 | 0 |
| Non Family | 38 | 1.05 | 68.4 | 31.6 |
| Female | 20 | 3.9 | 70 | 30 |
| Male | 12 | 5.33 | 75 | 25 |
3.3
Average Family Size
2.73
Average Household Size
83.1%
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 other race people with a rate of 100%.
The highest rate of bachelors degrees is among other race people with a rate of 100%.
All
Male
Female
$37,250
Average Earnings
$43,750
Average Male
$35,000
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
100% of Rock City residents speak only English, while 0% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0% of the population.
rate
7.69%
Overall Poverty Rate
10.11%
Male Poverty Rate
5%
Female Poverty Rate
The race most likely to be in poverty in Rock City is Multiple, with 18.18% below the poverty level.
The race least likely to be in poverty in Rock City is White, with 8.25% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.31%. Among those working part-time, it was 6.35%, and for those that did not work, the poverty rate was 16.92%.
Married
Widowed
Divorced
Separated
NeverMarried
47.9%
Overall Marriage Rate
50.4%
Male Marriage Rate
45.7%
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 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
62.5%
Veteran Disability Rate
LaborForceParticipation
72.3%
Labor Force Participation
69.1%
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
68.05%
Born in Rock City
100%
Native Born
0%
Foreign Born
0%
Non Citizen
0%
Naturalized
100% of Rock City residents were born in the United States, with 68.05% having been born in Illinois. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 272 | -3 | -1.09% |
| 2028 | 275 | -2 | -0.72% |
| 2027 | 277 | -3 | -1.07% |
| 2026 | 280 | -2 | -0.71% |
| 2025 | 282 | -3 | -1.05% |
| 2024 | 285 | -2 | -0.7% |
| 2023 | 287 | -3 | -1.03% |
| 2022 | 290 | -3 | -1.02% |
| 2021 | 293 | -2 | -0.68% |
| 2020 | 295 | 13 | 4.61% |
| 2019 | 282 | -2 | -0.7% |
| 2018 | 284 | -4 | -1.39% |
| 2017 | 288 | -3 | -1.03% |
| 2016 | 291 | -1 | -0.34% |
| 2015 | 292 | -4 | -1.35% |
| 2014 | 296 | -2 | -0.67% |
| 2013 | 298 | -1 | -0.33% |
| 2012 | 299 | -3 | -0.99% |
| 2011 | 302 | -1 | -0.33% |
| 2010 | 303 | 0 | 0% |