There are 36 cities in Porter County, Indiana.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gary | 1 | 67,199 | 69,009 | -0.67% | 1,346 | 49.9 | City |
| Portage | 2 | 38,697 | 37,959 | 0.48% | 1,510 | 25.6 | City |
| Merrillville | 3 | 36,310 | 36,457 | -0.1% | 1,093 | 33.2 | Town |
| Crown Point | 4 | 35,179 | 33,998 | 0.85% | 1,850 | 19.0 | City |
| Valparaiso | 5 | 34,782 | 34,162 | 0.45% | 2,073 | 16.8 | City |
| Michigan City | 6 | 31,542 | 32,010 | -0.37% | 1,546 | 20.4 | City |
| Schererville | 7 | 29,655 | 29,661 | -0.01% | 1,963 | 15.1 | Town |
| Hobart | 8 | 29,305 | 29,717 | -0.35% | 1,119 | 26.2 | City |
| St. John | 9 | 24,686 | 20,516 | 4.41% | 1,938 | 12.7 | Town |
| Cedar Lake | 10 | 16,694 | 14,190 | 3.9% | 1,814 | 9.2 | Town |
| Chesterton | 11 | 14,785 | 14,273 | 0.87% | 1,572 | 9.4 | Town |
| Lake Station | 12 | 12,974 | 13,266 | -0.56% | 1,564 | 8.3 | City |
| Winfield | 13 | 8,310 | 7,249 | 3.29% | 670 | 12.4 | Town |
| Lakes Four Seasons | 14 | 7,682 | 7,081 | 0.62% | 3,372 | 2.3 | CDP |
| South Haven | 15 | 7,563 | 5,017 | 2.2% | 3,329 | 2.3 | CDP |
| Westville | 16 | 5,265 | 5,275 | -0.06% | 1,620 | 3.3 | Town |
| Porter | 17 | 5,204 | 5,202 | 0% | 845 | 6.2 | Town |
| Hebron | 18 | 3,730 | 3,749 | -0.13% | 1,865 | 2.0 | Town |
| Shorewood Forest | 19 | 3,300 | 2,931 | 1.32% | 1,738 | 1.9 | CDP |
| Burns Harbor | 20 | 2,163 | 2,077 | 0.98% | 336 | 6.4 | Town |
| Kouts | 21 | 2,061 | 2,032 | 0.34% | 1,699 | 1.2 | Town |
| Trail Creek | 22 | 2,016 | 2,059 | -0.54% | 1,657 | 1.2 | Town |
| New Chicago | 23 | 1,949 | 1,997 | -0.61% | 2,896 | 0.7 | Town |
| Salt Creek Commons | 24 | 1,810 | 1,941 | -1.2% | 4,866 | 0.4 | CDP |
| Aberdeen | 25 | 1,736 | 1,698 | -0.57% | 1,381 | 1.3 | CDP |
| Lake Dalecarlia | 26 | 1,464 | 1,779 | 0.55% | 1,298 | 1.1 | CDP |
| Ogden Dunes | 27 | 1,170 | 1,181 | -0.26% | 1,575 | 0.7 | Town |
| Long Beach | 28 | 1,169 | 1,187 | -0.43% | 1,122 | 1.0 | Town |
| Wanatah | 29 | 983 | 1,003 | -0.51% | 703 | 1.4 | Town |
| Beverly Shores | 30 | 603 | 601 | 0% | 168 | 3.6 | Town |
| Town Pines | 31 | 594 | 594 | 0% | 263 | 2.3 | Town |
| La Crosse | 32 | 559 | 575 | -0.71% | 982 | 0.6 | Town |
| Michiana Shores | 33 | 299 | 306 | -0.66% | 859 | 0.3 | Town |
| Dune Acres | 34 | 234 | 234 | 0% | 110 | 2.1 | Town |
| Pottawattamie Park | 35 | 233 | 241 | -0.85% | 947 | 0.2 | Town |
| Wheeler | 36 | 107 | 229 | -18.32% | 40 | 2.7 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Gary is the largest city in Porter County.
Wheeler is the smallest city in Porter County.
There are 36 cities in Porter County, Indiana.