Indiana · Census place 1881278

Waterloo, Indiana

Waterloo is a town in DeKalb County, Indiana with an estimated 2,157 residents on July 1, 2024. It is the 195th largest of 299 incorporated places of 1,000+ people in the state.

Population 2024
2,157
#195 of 299 in Indiana
Change since 2020
+2.1%
+45 people
Land area
2.1 sq mi
Density
1,022 / sq mi
State median 1,645
Orange pin: Waterloo. Shaded: its county. Dark pin: Indianapolis.

Measure from here

Tools and pages that start from Waterloo

Waterloo population, 2020 to 2024

Waterloo added 45 residents from July 2020 to July 2024, a change of +2.1%. In the latest year it moved by +3.

2,11220202,11820212,13420222,15420232,1572024
July 1 estimates. The April 2020 estimates base was 2,112. The axis starts above zero so yearly changes are visible.

Waterloo covers 2.11 square miles of land, for 1,022 people per square mile of land. The median Indiana place of 5,000+ has 1,645, so Waterloo is less dense than the typical town.

What county Waterloo is in

All of Waterloo's residents live in DeKalb County, which had 44,330 residents in 2024. Waterloo holds 4.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Waterloo

1 ZIP Code Tabulation Area (ZCTA) overlaps Waterloo by at least 10% of the ZCTA's or the town's land: 46793. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a town that annexed land after 2020 may reach into ZIP codes not listed here.

Where Waterloo is

The Census internal point of Waterloo is at 41.437400, -85.051700. Indianapolis, the capital, is 129.1 miles SSW in a straight line. The nearest larger place is Auburn, IN (13,989 people), 4.8 miles away. The nearest city of 100,000 or more is Fort Wayne, IN, 24.6 miles away.

Internal point

Decimal
41.437400, -85.051700
DMS
41°26'14.64"N 85°03'6.12"W
UTM
16N 662771.0E 4589146.3N
Geohash
dp7e8x7nr
Plus code
86HPCWPX+X8

Daylight in Waterloo

At 41.44° N, Waterloo gets about 15 h 11 min of daylight around the June solstice and 9 h 11 min around the December solstice, a swing of 6 h 00 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Waterloo

The eight nearest incorporated places of 1,000+ in Indiana, measured between internal points. The closest is Auburn, 4.8 miles away, with 13,989 people.

Questions people ask

What is the population of Waterloo, IN?

2,157 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 45 (2.1%) from 2,112 in July 2020.

What county is Waterloo in?

DeKalb County. All of its residents live in that county.

What ZIP codes cover Waterloo?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 46793.

How far is Waterloo from Indianapolis?

129.1 miles (207.7 km) in a straight line, heading SSW from Waterloo.

What is the nearest larger city to Waterloo?

Auburn, IN, with 13,989 residents, 4.8 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.