Indiana

Monroe

139,718
2020 population
1820
first census record
21
census records

About Monroe

Monroe, Indiana, first appears in the United States federal census in 1820, when it recorded a population of 2,679. At the most recent census, in 2020, its population stood at 139,718.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 50 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020139,718
2010137,974
2000120,563
1990108,978
198098,785
197084,849
196059,225
195050,080
194036,534
193035,974
192024,519
191023,426
190020,873
189017,673
188015,875
187014,168
186012,847
185011,286
184010,143
18306,577
18202,679
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Historic places in Monroe

National Register of Historic Places listings in Monroe, Indiana.

Nichols, J.L., House and Studio
Bloomington
Millen House
Bloomington
Stinesville Commercial Historic District
Stinesville
Steele Dunning Historic District
Bloomington
Bloomington West Side Historic District (Additional Documentation)
Bloomington
Stout, Daniel, House
Bloomington
Mitchell, Joseph, House
Smithville
Vinegar Hill Historic District
Bloomington
Monroe County Courthouse
Bloomington
Legg House
Bloomington
Courthouse Square Historic District
Bloomington
Blair-Dunning House
Bloomington
North Washington Street Historic District
Bloomington
Illinois Central Railroad Freight Depot
Bloomington
Monroe Carnegie Library
Bloomington
Seminary Square Park
Bloomington
Wylie, Andrew, House
Bloomington
Prospect Hill Historic District
Bloomington
Abel, Elias, House
Bloomington
Maple Grove Road Rural Historic District
Bloomington
Princess Theatre
Bloomington
Woolery Stone Company
Bloomington
Cochran-Helton-Lindley House
Bloomington
Ellettsville Downtown Historic District
Ellettsville
Browse all Indianahistoric sites ›

Other counties in Indiana

Explore census history and historic records for more Indiana counties.

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Everything a full report reveals about Monroe County, Indiana

This page charts the census history of Monroe County, Indiana. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Monroe

When does Monroe first appear in the US census?
Monroe, Indiana first appears in the federal census in 1820, with a recorded population of 2,679.
What is the population of Monroe?
At the most recent federal census (2020), Monroe had a recorded population of 139,718.
How many historic places are in Monroe?
50 sites are listed on the National Register of Historic Places in Monroe, Indiana.
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