Big Rock, Iowa Demographics & Population 2026
During the 2020–2024 ACS period, Big Rock, Iowa had a total population of 6, the 1014th largest community in Iowa. The poverty rate is 0.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- 50.0% of adults hold a bachelor's degree or higher — top 10% in Iowa.
Big Rock Quick Facts
How Big Rock Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 12 | 6 | -50.0% |
How Big Rock Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 31 | National average: 61
Education
Educational Attainment (Adults 25+)
Big Rock Rankings in Iowa
Explore Iowa Rankings
Other Cities in Scott County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Davenport | 100,913 | $66,200 | 15.2% | $166,400 |
| Bettendorf | 39,647 | $100,495 | 6.7% | $306,500 |
| Eldridge | 6,818 | $106,316 | 1.4% | $350,500 |
| Le Claire | 4,735 | $104,844 | 6.8% | $318,700 |
| Park View | 2,437 | $113,409 | 2.8% | $276,000 |
| Blue Grass | 1,972 | $92,981 | 6.4% | $222,500 |
| Durant | 1,946 | $81,625 | 7.8% | $194,300 |
| Walcott | 1,725 | $78,580 | 6.6% | $190,300 |
| Buffalo | 1,097 | $69,728 | 18.8% | $122,100 |
| Princeton | 794 | $87,188 | 3.9% | $266,200 |
Cities Similar to Big Rock
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Burchinal | 6 | N/A | N/A | 0.0% | 0.0% |
| River Sioux | 7 | N/A | N/A | 0.0% | 0.0% |
| Berkley | 5 | N/A | N/A | 80.0% | 0.0% |
| Beaconsfield | 8 | N/A | N/A | 0.0% | 0.0% |
| Delphos | 4 | N/A | N/A | 0.0% | 25.0% |
A note before these figures: with a population of 6, Big Rock's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Big Rock is a small community located in Iowa, within Scott County. The total population is 6. It ranks as the 1014th most populous out of 1,017 Census-designated places in Iowa.
Age Demographics
Economy, Income & Housing
The ACS records no residents below the poverty line in Big Rock. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Big Rock, which reflects the size of the sample rather than a labor market without joblessness. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 71.7%.
Race & Ethnicity
Every resident counted in Big Rock was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
50.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Big Rock in the top 10% of all cities in the state for educational attainment. This is 59% higher than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Big Rock, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,017 Census-designated places in Iowa. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Iowa city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Big Rock, Iowa?
Big Rock, Iowa has a population of 6 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Big Rock, IA?
The Census Bureau does not publish a reliable median household income estimate for Big Rock — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Big Rock, IA?
The ACS sample for Big Rock recorded no residents below the federal poverty line. Because the community is small, this indicates that the survey did not capture poverty here rather than that no poverty exists — the estimate carries a wide margin of error.
What is the racial makeup of Big Rock, Iowa?
Big Rock's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Big Rock, IA?
The Census Bureau does not publish a reliable median home value estimate for Big Rock — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Big Rock, Iowa?
50.0% of adults (25+) in Big Rock hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.