Adults 35 to 64 are nearly three quarters of residents (36% statewide); children under 18 are 9% of residents (24% statewide). In Blom Township, the midpoint age is 50.5 years, above both South Dakota’s towns (39.5 years) and U.S. towns (40.5 years). South Dakota has 32% of adults 25 and older with a bachelor’s degree or more; here it is 34%. The Census Bureau’s 2025 estimate puts Blom Township at 102 residents, up 4.1% since 2020.

50.5median age · SD 38

	Blom Township	South Dakota towns	U.S. towns
Median age	50.5 years	39.5 years	40.5 years
Bachelor’s degree or more, 25+	34%	33%	29%

Blom TownshipSouth DakotaUnited States

SDU.S.

Ages · share of residents

55%

Education · adults 25 and older

No diploma4%

High school34%

Some college15%

Associate’s13%

Bachelor’s25%

Graduate9%

Ages and education in Blom Township
	Blom Township	SD	U.S.
Under 10	6.2%	13.1%	11.6%
10 to 17	3.1%	11.2%	10.3%
18 to 24	9.2%	9.3%	9.1%
25 to 34	0%	12.6%	13.7%
35 to 44	6.2%	12.6%	13.2%
45 to 54	55.4%	10.7%	12.2%
55 to 64	12.3%	12.6%	12.7%
65 to 74	7.7%	11%	10.2%
75 and older	0%	7%	7%
No diploma	3.8%	6.8%	10.4%
High school	34%	29%	26%
Some college	15.1%	19.9%	19.1%
Associate’s	13.2%	12.3%	8.8%
Bachelor’s	24.5%	21.9%	21.6%
Graduate	9.4%	10%	14.1%

Full pageBlom Township by the numbersOpen the page

Ages50.5 median age · 8% are 65 or older Schooling34% have a four-year degree Homes91% own their home · Homeowners Income$131K a year · Median household income

Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 100, single groups can be off by several points

Climate

In Blom Township, a typical July afternoon runs cooler than in the typical South Dakota or U.S. town

Blom Township brings cold, snowy winters and pleasant summers. July afternoons reach 80°, January nights drop to 4° and about 61 inches of snow falls in a winter.

61″snow a winter

Typical low → high °F

Winter8–24°

Spring32–52°

Summer57–78°

Fall35–55°

Oct 1

typical first frost

May 7

typical last frost

+1.0°

vs. the 20th-century average

Full pageBlom Township’s climate pageOpen the page

A year of weatherJuly highs 80°, January lows 4°Rain & snow61″ of snow a winter · 27 inches of rain and snow a year Heating & coolingMostly a heating bill Then and now+1.0° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Natural hazards

Blom Township faces a low natural-hazard risk, led by inland flooding

In Blom Township, the natural-hazard score from FEMA is 36 of 100, below both the South Dakota town median (54 of 100) and the median of U.S. towns (44 of 100). Of the losses FEMA expects in the town, 34% come from inland flooding and 20% from cold waves. Households locally have drawn federal disaster aid in 5 declared disasters, most recently in 2019.

36risk score of 100

FEMA risk score

Inland floodingCold wavesTornadoes

federal disasters paid out here

Full pageBlom Township’s hazards pageOpen the page

What it facesLow risk Flood claims0 paid flood claims · No paid flood claims on record Past disasters5 federal disasters · Paid out in Blom Township Get ready0.6 events a year, on average · Ready for inland flooding

FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA

Health

How healthy Blom Township is

Among adults in Blom Township, 29% sleep under 7 hours. This South Dakota town beats the South Dakota average on 2 of 26 CDC measures and trails it on 1. In Blom Township, 14% of adults report frequent mental distress, and 20% have been diagnosed with depression.

	Blom Township	South Dakota towns	U.S. towns
Sleep under 7 hours (CDC PLACES)	29%	30%	36%
Frequent mental distress (CDC PLACES)	14%	15%	17%
Depression (CDC PLACES)	20%	22%	23%
Binge drink (CDC PLACES)	19%	19%	16%