Saint Mary Help of Christians Catholic Church, 2013
Sullivan’s story
180 years in pictures
The archive holds 5 old photos and papers going back to 2013.
- 1846Sullivan is settled
SullivanWI
Trash day: ThursdayPopulation
663
2025 Census estimate · +1.5% since 2020
Median home value
$257K
Census ACS
Household income
$71K
median
Median age
42.6
years
Jobs based here
264
Balanced
Is Sullivan a good place to live?
27% of residents live below the poverty line in Sullivan, against 6.4% in Wisconsin’s towns and 9.6% across U.S. towns. Only 5 of the 363 Wisconsin towns we compare have a lower owner-occupancy rate than Sullivan. Sullivan has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
What makes Sullivan stand out
Where Sullivan beats most towns.
Small town
663 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
ConcordSullivanSullivan
Getting set up
The full setup list →Moving to Sullivan: who provides what
Who provides power, water and the rest in Sullivan, and how to reach them.
PowerWe Energies20.5¢/kWh · EIA 2025HIFLD · EIA
Internet7 providers99% of addresses get 100/20 MbpsFCC
Trash & dumpThursdayTrash dayTown site
Register to voteOnlineIn Wisconsin you can register online until 20 days before Election Day, in person up to and including Election Day, or by mail (postmarked 20 days before).vote.govWho runs elections hereVillage of Sullivan ClerkThe town itself; contacts on the Handbook page.FVAP, May 2026
ZIP code5317853178 100%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 Sullivan.
Schools
The schools Sullivan’s kids attend
Public schools: the Jefferson School District. Its one school is below. 144 students attend Sullivan’s public school.
| School | Level | Students | Letter |
|---|---|---|---|
| Sullivan ElementaryLargest public elementary schoolGrades PK–5 | Grades PK–5 | 144 | A− |
NCES · EDFacts
Climate
Sullivan: snowy winters and pleasant summers
In July, afternoons reach 82°; in January, nights fall to 12°, and about 51 inches of snow falls in a winter.
51″snow a winter
Typical low → high °F
Winter15–31°
Spring36–56°
Summer59–80°
Fall40–60°
Oct 9
typical first frost
May 3
typical last frost
+1.2°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Natural hazards
Sullivan faces a low natural-hazard risk, led by inland flooding
Sullivan’s FEMA hazard score stands at 33 of 100, above the Wisconsin town median (23 of 100) but below the median of U.S. towns (44 of 100). 53% of the town’s expected losses from natural hazards come from inland flooding, followed by tornadoes at 16%. Households locally have drawn federal disaster aid in 5 declared disasters, most recently in 2026.
33risk score of 100
FEMA risk score
Inland floodingTornadoesCold waves
1
paid flood claims since 1979
5
federal disasters paid out here
FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA
Work & commute
Sullivan has 0.8 jobs per working resident, so most workers leave town for work
Sullivan had 264 jobs in 2023, up 65 from 2013. For most workers, Sullivan is a place to come home to: only 2% work in town. In Sullivan, the average commute is 29 minutes. The top destinations are Waukesha (8%), Oconomowoc (7%) and Madison (5%).
2%work in town
| Sullivan | Wisconsin towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 29 minutes | 22 minutes | 25 minutes |
| Working residents who work in town | 2.5% | 8.3% | 8% |
| Median household income | $71,000 | $87,000 | $80,000 |
Where working residents work
In Sullivan2%
Waukesha8%
Oconomowoc7%
Madison5%
Pewaukee5%
20 mi
median commute distance
264
jobs based in Sullivan
Balanced
jobs vs. working residents
Census LEHD 2023 · ACS
Health
How healthy Sullivan is
Among adults in Sullivan, 41% have obesity. This Wisconsin town tracks Wisconsin closely on all 32 CDC measures.
| Sullivan | Wisconsin towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 20% | 20% | 16% |
| High blood pressure (CDC PLACES) | 30% | 33% | 35% |
| Obesity (CDC PLACES) | 41% | 38% | 35% |
| Yearly checkup (CDC PLACES) | 76% | 78% | 79% |
32 measures vs. Wisconsin
0 better32 too close to call0 worse
Oconomowoc Memorial Hospital
8.2 mi away · emergency room
None
primary care, dental or mental-health shortage
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Housing
A home in Sullivan sells for about $386K at the median
In Sullivan, the median rent is $1,160 a month.
$386Kmedian sale price
2
homes sold in May
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Keep exploring
Everything we know about Sullivan
17pages on Sullivan
The big questions
Out and about
The story
Day to day
After high school
Colleges nearby
3 within 15 miles of the center of Sullivan
Nashotah HouseUniversity or college · Private nonprofit · Nashotah9.9 miUniversity of Wisconsin-WhitewaterUniversity or college · Public · Whitewater14.3 mi$8,616 in-state tuitionMaranatha Baptist UniversityUniversity or college · Private nonprofit · Watertown14.5 mi$21,550 tuition
About 1 of every 100 Sullivan residents are enrolled in college, against 6 across Wisconsin.
Questions about Sullivan
Short answers, built from the data on this page.
Is Sullivan, WI a good place to live?
Sullivan has fewer than 1,000 residents, too few for fair grades; the figures below are still real.