Big Rock, Iowa, 2022
Big Rock’s story
173 years in pictures
The archive holds 1 old photo or paper going back to 2022 and 4 maps from 1892 on.
- 1853Big Rock is settled
Big RockIA
Settled in 1853, this town now has 6 residents.
Photo: Farragutful · CC BY-SA 4.0
Population
6
Census survey, 2020–24
Land area
0 sq mi
Is Big Rock a good place to live?
50% of adults 25 and older hold a bachelor’s degree or more in Big Rock, above both Iowa’s towns (25%) and U.S. towns (29%). No town among the 141 in Iowa we compare has a higher share of households owning their home than Big Rock. Big Rock has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Small town
6 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
Getting set up
Moving to Big Rock: who provides what
Big Rock is unincorporated, so Clinton County and regional agencies provide most services.
PowerInterstate Power and Light17.8¢/kWh · EIA 2025HIFLD · EIA
Internet4 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesClinton CountyClinton County provides services here
Register to voteOnlineIn Iowa you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before).vote.govWho runs elections hereScott County AuditorScott County; contacts on the Handbook page.FVAP, Nov 2025
ZIP codes52745, 5277752745 69% · 52777 31%Census 2020
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in Big Rock.
Climate
Four seasons and pleasant summers: that is Big Rock’s year
Summer afternoons peak near 84° in July, and January nights bottom out around 13°; snowfall runs to about 40 inches a winter. Expect cold, snowy winters and pleasant summers in Big Rock.
40″snow a winter
Typical low → high °F
Winter17–33°
Spring39–60°
Summer62–82°
Fall42–62°
Oct 10
typical first frost
Apr 27
typical last frost
+0.9°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Health
How healthy Big Rock is
Big Rock does better than the Iowa average on 1 of 32 CDC measures and worse on 4. In Big Rock, 21% of adults binge drink. Two in five adults locally have obesity; 33% sleep under 7 hours.
| Big Rock | Iowa towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 21% | 20% | 16% |
| Obesity (CDC PLACES) | 40% | 38% | 35% |
| Sleep under 7 hours (CDC PLACES) | 33% | 32% | 36% |
| Smoke cigarettes (CDC PLACES) | 16% | 15% | 14% |
32 measures vs. Iowa
1 better27 too close to call4 worse
| What stands out | Big Rock | IA |
|---|---|---|
| More adults screened for colon cancer | 72.3% | 66.6% |
| More adults with arthritis | 31.5% | 27% |
Mercyone Genesis Dewitt Medical Center
14.9 mi away · emergency room
2 of 3
care shortages: primary care, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Natural hazards
Top of a moderate hazard risk in Big Rock: inland flooding
On expected storm and flood damage, Big Rock sits below 54% of U.S. communities. Of the losses FEMA expects here, 59% come from inland flooding and 19% from drought.
46risk score of 100
FEMA risk score
Inland floodingDroughtTornadoes
FEMA National Risk Index · OpenFEMA
Keep exploring
Everything we know about Big Rock
13pages on Big Rock
The big questions
Out and about
Day to day
After high school
Colleges nearby
None within 15 miles of Big Rock; the nearest are
Saint Ambrose UniversityUniversity or college · Private nonprofit · Davenport20.3 mi$36,658 tuitionEastern Iowa Community College DistrictCommunity college · Public · Davenport21.5 mi$4,848 in-state tuitionUniversity of IowaUniversity or college · Public · Iowa City37.4 mi$11,283 in-state tuition
College town 50 of every 100 Big Rock residents are enrolled in college, against 6 across Iowa.
About Big Rock
Census-designated place in Iowa, United States
Big Rock is an unincorporated community and census-designated place in Scott and Clinton counties, Iowa, United States. As of the 2020 census, Big Rock had a population of 49. The community is named for a large boulder.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 0.3 sq mi
- Elevation
- 676 ft
Questions about Big Rock
Short answers, built from the data on this page.
Is Big Rock, IA a good place to live?
Big Rock has fewer than 1,000 residents, too few for fair grades; the figures below are still real.