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Marion County, FL Demographics

Marion County, FL is the 18th most populous of 67 counties in Florida, with 375,908 residents across 1,588 square miles. That is about 237 people per square mile.

At the 2020 census

Population 375,908
Land area 1,588 sq mi
Density 237 / sq mi

Data: 2020 Census · American Community Survey 2024

How Marion County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Marion County, FL

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Marion County, FL — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Marion County, FL

Name Population Sq mi Per sq mi
Census Tract 10.13 8,201 7.8 1,049
Census Tract 12.04 7,815 3.7 2,125
Census Tract 10.09 7,799 6.1 1,270
Census Tract 10.05 7,609 21.9 347
Census Tract 11.03 7,391 13.4 554
Census Tract 26.02 7,213 42.7 169
Census Tract 22.03 7,089 4.2 1,706
Census Tract 25.03 7,089 9.4 751
Census Tract 9.04 6,902 19.3 358
Census Tract 26.05 6,848 15.6 438
Census Tract 13.01 6,714 9.8 684
Census Tract 23.02 6,637 5.5 1,207
Census Tract 25.05 6,574 11.5 574
Census Tract 13.02 6,555 39.9 164
Census Tract 9.01 6,413 29.6 216
Census Tract 10.07 6,345 3.2 2,009
Census Tract 12.10 6,205 3.6 1,706
Census Tract 25.07 5,856 4.2 1,401
Census Tract 25.04 5,788 6.5 897
Census Tract 24.02 5,760 16.0 360
Census Tract 23.04 5,663 2.2 2,603
Census Tract 14.01 5,621 3.0 1,867
Census Tract 14.03 5,453 3.5 1,576
Census Tract 27.05 5,422 22.7 239
Census Tract 8.05 5,412 4.5 1,192
Census Tract 24.01 5,160 9.0 572
Census Tract 17 5,156 1.6 3,127
Census Tract 21 5,100 3.2 1,597
Census Tract 4.02 4,993 87.6 57
Census Tract 10.08 4,887 3.0 1,634
Census Tract 3.04 4,887 10.5 467
Census Tract 7.06 4,607 4.5 1,031
Census Tract 11.05 4,444 5.4 819
Census Tract 20.02 4,283 1.2 3,693
Census Tract 27.04 4,256 32.5 131
Census Tract 8.11 4,203 2.1 1,994
Census Tract 10.11 4,176 8.0 524
Census Tract 26.10 4,165 2.1 2,017
Census Tract 12.05 4,150 28.7 144
Census Tract 16 4,098 2.9 1,397
Census Tract 6.01 4,095 135.9 30
Census Tract 3.02 4,082 20.0 204
Census Tract 7.03 4,029 6.0 672
Census Tract 26.07 4,021 12.1 331
Census Tract 12.08 3,949 1.6 2,442
Census Tract 26.04 3,859 19.7 196
Census Tract 22.01 3,769 2.3 1,610
Census Tract 15 3,765 11.0 341
Census Tract 8.03 3,740 4.9 766
Census Tract 10.10 3,725 3.8 982
Census Tract 22.02 3,693 1.7 2,232
Census Tract 12.11 3,613 1.3 2,870
Census Tract 12.09 3,592 1.5 2,344
Census Tract 6.04 3,385 107.5 31
Census Tract 8.10 3,345 2.2 1,496
Census Tract 9.03 3,325 3.8 868
Census Tract 10.12 3,294 9.0 366
Census Tract 6.06 3,244 25.4 128
Census Tract 11.02 3,124 3.3 953
Census Tract 6.07 3,111 36.5 85
Census Tract 3.03 3,036 17.7 172
Census Tract 26.08 3,023 45.7 66
Census Tract 8.08 3,020 1.0 3,084
Census Tract 2.02 3,017 26.9 112
Census Tract 26.09 2,949 1.2 2,511
Census Tract 6.05 2,849 20.6 138
Census Tract 1.01 2,848 78.6 36
Census Tract 11.06 2,713 4.4 612
Census Tract 27.03 2,695 41.2 65
Census Tract 20.01 2,665 1.1 2,459
Census Tract 19 2,585 2.1 1,233
Census Tract 8.09 2,565 1.4 1,848
Census Tract 4.01 2,531 54.7 46
Census Tract 8.06 2,526 1.3 2,018
Census Tract 2.01 2,477 16.1 153
Census Tract 1.02 2,461 65.4 38
Census Tract 25.06 2,430 9.5 257
Census Tract 8.07 2,337 3.7 634
Census Tract 7.07 2,107 4.3 495
Census Tract 12.06 1,961 2.3 840
Census Tract 7.04 1,931 19.3 100
Census Tract 7.05 1,867 10.8 173
Census Tract 5.01 1,867 80.9 23
Census Tract 23.03 1,781 0.7 2,411
Census Tract 18 1,634 0.9 1,882
Census Tract 10.03 1,630 19.7 83
Census Tract 8.04 1,590 3.0 528
Census Tract 5.02 1,414 82.5 17
Census Tract 2.03 1,388 16.2 86
Census Tract 27.06 1,216 23.6 52
Census Tract 14.04 1,096 0.8 1,317
Census Tract 9800 0 8.9 0
Census Tract 9801 0 0.4 0

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Metro areas containing Marion County

About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →