Indiana · Census place 1860246
Plainfield, Indiana
Plainfield is a town in Hendricks County, Indiana with an estimated 37,796 residents on July 1, 2024. It is the 25th largest of 299 incorporated places of 1,000+ people in the state.
- Population 2024
- 37,796
- #25 of 299 in Indiana
- Change since 2020
- +8.3%
- +2,897 people
- Land area
- 26.9 sq mi
- + 0.13 sq mi water
- Density
- 1,403 / sq mi
- State median 1,645
Measure from here
Tools and pages that start from Plainfield
Plainfield population, 2020 to 2024
Plainfield added 2,897 residents from July 2020 to July 2024, a change of +8.3%. In the latest year it moved by +629. Among 126 Indiana places of 5,000 or more, that growth ranks 16th; the median place changed by +1.0%. The median place of 5,000+ in Indiana has 14,565 people, so Plainfield is 2.6 times that size.
Plainfield covers 26.93 square miles of land and 0.13 of water, for 1,403 people per square mile of land. The median Indiana place of 5,000+ has 1,645, so Plainfield is less dense than the typical town.
What county Plainfield is in
All of Plainfield's residents live in Hendricks County, which had 190,629 residents in 2024. Plainfield holds 19.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Plainfield
2 ZIP Code Tabulation Areas (ZCTAs) overlap Plainfield by at least 10% of the ZCTA's or the town's land: 46168, 46231. 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 Plainfield is
The Census internal point of Plainfield is at 39.693200, -86.372000. Indianapolis, the capital, is 12.5 miles ENE in a straight line. The nearest larger place is Indianapolis, IN (891,484 people), 13.3 miles away.
Internal point
- Decimal
- 39.693200, -86.372000
- DMS
- 39°41'35.52"N 86°22'19.20"W
- UTM
- 16N 553845.2E 4393894.8N
- Geohash
- dp49f9cvd
- Plus code
- 86FMMJVH+75
Daylight in Plainfield
At 39.69° N, Plainfield gets about 14 h 59 min of daylight around the June solstice and 9 h 22 min around the December solstice, a swing of 5 h 37 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Plainfield
The eight nearest incorporated places of 1,000+ in Indiana, measured between internal points. The closest is Avon, 4.8 miles away, with 24,735 people.
Questions people ask
What is the population of Plainfield, IN?
37,796 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 2,897 (8.3%) from 34,899 in July 2020.
What county is Plainfield in?
Hendricks County. All of its residents live in that county.
What ZIP codes cover Plainfield?
2 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 46168, 46231.
How far is Plainfield from Indianapolis?
12.5 miles (20.1 km) in a straight line, heading ENE from Plainfield.
What is the nearest larger city to Plainfield?
Indianapolis, IN, with 891,484 residents, 13.3 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.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.