Waldorf Hotel · National Register of Historic Places
Andover’s story
145 years in pictures
1 place on the National Register of Historic Places.
- 1881Andover is settled
AndoverSD
A town of 71, settled in 1881.
Photo: GregGilbertson · CC BY-SA 3.0
Population
71
2025 Census estimate · +4.4% since 2020
Median home value
$58K
Census ACS
Household income
$68K
median
Median age
61.6
years
Land area
0 sq mi
Is Andover a good place to live?
Andover’s median age is 61.6 years, above both South Dakota’s towns (39.5 years) and U.S. towns (40.5 years). Among 36 South Dakota towns, just 1 have a lower January low than Andover. Waldorf Hotel is on the National Register of Historic Places. Andover has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Small town
71 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
Getting set up
The full setup list →Moving to Andover: who provides what
Who provides power, water and the rest in Andover, and how to reach them.
PowerNorthWestern Energy13.3¢/kWh · EIA 2025HIFLD · EIA
WaterWEB WaterNo health-based violations in 5 years · EPAEPA
Internet1 providers100% of addresses get 100/20 MbpsFCC
Trash & dumpNot on file yetWe don’t have Andover’s trash rules yet
Register to voteIn personSouth Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before).vote.govWho runs elections hereDay County AuditorDay County; contacts on the Handbook page.FVAP, Jul 2023
ZIP code5742257422 100%Census 2020
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.
The data
Ordered by what stands out in Andover.
Natural hazards
The FEMA risk score in Andover is lower than in most of South Dakota or the rest of the country
At 18 of 100, Andover’s FEMA risk score is below both the South Dakota town median (54 of 100) and the median of U.S. towns (44 of 100).
18risk score of 100
FEMA risk score
Cold wavesInland floodingStrong wind
2
federal disasters paid out here
FEMA National Risk Index · OpenFEMA
Climate
Andover has four seasons and pleasant summers
Andover has cold, snowy winters and pleasant summers, with very little rain. Andover’s July high is 82°F.
32″snow a winter
Typical low → high °F
Winter6–24°
Spring32–54°
Summer58–80°
Fall35–56°
Oct 4
typical first frost
May 6
typical last frost
+1.2°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Health
A smaller share of adults in Andover have been diagnosed with depression than in the typical South Dakota or U.S. town
18% of Andover adults have been diagnosed with depression. Only 3 of the 36 South Dakota towns we compare have a higher share of adults who have diabetes than Andover. 14% of Andover adults report frequent mental distress.
| Andover | South Dakota towns | U.S. towns | |
|---|---|---|---|
| Depression (CDC PLACES) | 18% | 22% | 23% |
| Frequent mental distress (CDC PLACES) | 14% | 15% | 17% |
| Diabetes (CDC PLACES) | 14% | 10% | 12% |
| No health insurance, 18–64 (CDC PLACES) | 13% | 8.4% | 8.1% |
26 measures vs. South Dakota
1 better23 too close to call2 worse
| What stands out | Andover | SD |
|---|---|---|
| More adults screened for colon cancer | 71.2% | 65.5% |
| More uninsured adults | 12.9% | 8.8% |
Sanford Hospital Webster - Cah
19.2 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Keep exploring
Everything we know about Andover
16pages on Andover
The big questions
Out and about
The story
After high school
Colleges nearby
None within 15 miles of Andover; the nearest are
Northern State UniversityUniversity or college · Public · Aberdeen28.3 mi$8,845 in-state tuitionLake Area Technical CollegeCommunity college · Public · Watertown52.8 mi$6,718 in-state tuition
About 10 of every 100 Andover residents are enrolled in college, against 5 across South Dakota.
About Andover
Town in South Dakota, United States
Andover is a town in northwestern Day County, South Dakota, United States. The population was 66 at the 2020 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 0.3 sq mi
- Elevation
- 1,480 ft
- ZIP code
- 57422
- Area code
- 605
Questions about Andover
Short answers, built from the data on this page.
Is Andover, SD a good place to live?
Andover has fewer than 1,000 residents, too few for fair grades; the figures below are still real.