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South Central Connecticut Planning Region, CT Demographics

South Central Connecticut Planning Region, CT is the 3rd most populous of 9 counties in Connecticut, with 568,688 residents across 355 square miles. That is about 1,603 people per square mile.

At the 2020 census

Population 568,688
Land area 355 sq mi
Density 1,603 / sq mi

Data: 2020 Census · American Community Survey 2024

How South Central Connecticut Planning Region 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: South Central Connecticut Planning Region, CT

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

We're computing the drive-time and radius areas around South Central Connecticut Planning Region, CT — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in South Central Connecticut Planning Region, CT

Name Population Sq mi Per sq mi
Census Tract 1659 8,209 10.4 789
Census Tract 3615 8,083 1.1 7,208
Census Tract 1673.01 7,636 6.7 1,141
Census Tract 1415 7,590 0.6 12,198
Census Tract 1942.01 7,520 16.4 460
Census Tract 1660.02 6,900 6.6 1,048
Census Tract 1427 6,784 1.1 5,920
Census Tract 1861 6,771 7.6 894
Census Tract 1862 6,759 17.0 398
Census Tract 1542 6,656 1.1 5,925
Census Tract 1903.01 6,638 11.3 585
Census Tract 1506 6,560 3.5 1,874
Census Tract 1547 6,405 1.7 3,786
Census Tract 1413.01 6,372 1.4 4,700
Census Tract 1511 6,323 2.0 3,120
Census Tract 1755.02 6,113 3.1 1,985
Census Tract 1847 6,011 7.6 796
Census Tract 1656 5,998 0.9 6,561
Census Tract 1425 5,961 0.6 10,827
Census Tract 1760 5,934 14.3 415
Census Tract 1708 5,854 1.4 4,237
Census Tract 1424 5,789 0.3 17,818
Census Tract 1426.01 5,788 0.9 6,253
Census Tract 1802 5,726 1.3 4,278
Census Tract 1419 5,686 0.4 13,563
Census Tract 1711 5,590 1.7 3,364
Census Tract 1602 5,512 11.8 469
Census Tract 1423 5,506 0.3 21,298
Census Tract 1654 5,499 1.1 5,032
Census Tract 1705 5,403 2.9 1,893
Census Tract 1658.01 5,393 1.5 3,705
Census Tract 1903.02 5,384 7.7 704
Census Tract 1550 5,318 0.6 9,637
Census Tract 1611 5,295 20.7 256
Census Tract 1841.01 5,218 1.5 3,558
Census Tract 1416 5,201 0.4 13,463
Census Tract 1756 5,128 2.6 2,009
Census Tract 1942.02 5,098 10.9 469
Census Tract 1716 4,998 2.8 1,777
Census Tract 1414 4,961 0.4 11,399
Census Tract 1541.02 4,923 1.5 3,285
Census Tract 1759 4,911 1.9 2,601
Census Tract 1655 4,785 0.6 8,379
Census Tract 1428 4,750 1.2 3,907
Census Tract 1712.01 4,701 1.9 2,490
Census Tract 1412 4,695 0.6 7,540
Census Tract 1406 4,678 0.3 16,699
Census Tract 1548 4,676 0.7 7,008
Census Tract 1545 4,636 0.5 9,874
Census Tract 1418 4,587 0.5 8,416
Census Tract 1657 4,574 1.0 4,670
Census Tract 1409 4,497 0.3 16,973
Census Tract 1805 4,496 1.6 2,829
Census Tract 1754 4,480 3.5 1,292
Census Tract 3614.01 4,472 0.1 30,895
Census Tract 1507 4,323 4.2 1,033
Census Tract 1574 4,311 5.2 825
Census Tract 1672.02 4,292 3.4 1,260
Census Tract 1660.04 4,274 0.7 5,940
Census Tract 1842 4,272 1.6 2,623
Census Tract 1753 4,268 1.6 2,634
Census Tract 1758 4,263 5.1 829
Census Tract 1843 4,263 1.5 2,830
Census Tract 1546 4,241 0.8 5,423
Census Tract 1407 4,223 0.2 21,774
Census Tract 1501 4,218 1.1 3,735
Census Tract 1505 4,205 1.3 3,116
Census Tract 1671.02 4,193 1.6 2,673
Census Tract 1672.01 4,190 2.1 1,953
Census Tract 3614.02 4,119 0.2 16,805
Census Tract 1426.05 4,110 0.4 11,008
Census Tract 1504 4,076 0.6 6,498
Census Tract 1658.02 4,047 4.8 848
Census Tract 1510 4,020 0.8 5,131
Census Tract 1651 4,004 1.0 4,123
Census Tract 1509 3,951 1.7 2,313
Census Tract 1717 3,942 3.8 1,034
Census Tract 1801.02 3,936 1.2 3,188
Census Tract 1671.01 3,929 3.8 1,027
Census Tract 1408 3,906 0.5 8,605
Census Tract 1549 3,858 0.7 5,567
Census Tract 1503 3,855 1.1 3,447
Census Tract 1508 3,846 1.7 2,291
Census Tract 1572 3,803 3.5 1,088
Census Tract 1410 3,766 0.5 6,882
Census Tract 1405 3,761 0.4 10,638
Census Tract 1715 3,638 0.4 9,330
Census Tract 1601 3,611 6.8 534
Census Tract 1573 3,557 4.5 797
Census Tract 1806.02 3,508 2.9 1,204
Census Tract 1404 3,481 0.3 11,441
Census Tract 1713 3,413 0.7 4,868
Census Tract 1712.02 3,406 2.7 1,268
Census Tract 1420 3,388 0.3 13,290
Census Tract 1551 3,380 0.4 7,526
Census Tract 1502 3,372 0.7 4,509
Census Tract 1902 3,361 7.6 442
Census Tract 1903.03 3,354 16.4 204
Census Tract 1751 3,301 0.5 6,482
Census Tract 1901 3,296 2.7 1,209

Showing the 100 most populous of 135 — the rest are shown on the map.

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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.

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