| Population | 2,268 |
| Nationwide Rank | 7140 |
Seneca, Illinois is the 7,140th largest city in the United States as of 2017.
Seneca, Illinois is a village.
Seneca, Illinois is currently 4.3% smaller than it was in 2010, the year of its peak recorded population.
Seneca, Illinois is growing somewhat quickly. It is growing faster than 74% of similarly sized cities since 2000.
| US Rank | Name | Population | Growth 2000-2017 |
|---|---|---|---|
| 7130 | Eatonville, Florida | 2,273 | -6.6% |
| 7131 | Henry, Illinois | 2,273 | -10.2% |
| 7132 | Tazewell, Tennessee | 2,273 | 1.4% |
| 7133 | La Porte City, Iowa | 2,272 | -2.0% |
| 7134 | Village of Four Seasons, Missouri | 2,272 | 51.5% |
| 7135 | Valley, Nebraska | 2,271 | 26.5% |
| 7136 | Fredonia, Kansas | 2,270 | -12.2% |
| 7137 | Chesaning, Michigan | 2,269 | -10.8% |
| 7138 | Lake Placid, Florida | 2,269 | 21.9% |
| 7139 | Plattsburg, Missouri | 2,269 | -3.7% |
| 7140 | Seneca, Illinois | 2,268 | 10.5% |
| 7141 | Lamoni, Iowa | 2,267 | -7.2% |
| 7142 | Walkerton, Indiana | 2,267 | -0.3% |
| 7143 | Phoenix, New York | 2,266 | -0.1% |
| 7144 | Abbotsford, Wisconsin | 2,265 | 15.7% |
| 7145 | Elwood, Illinois | 2,265 | 36.8% |
| 7146 | Goldsby, Oklahoma | 2,265 | 53.7% |
| 7147 | Carthage, Tennessee | 2,263 | 0.3% |
| 7148 | Lineville, Alabama | 2,263 | -5.6% |
| 7149 | Pulaski, New York | 2,263 | -6.0% |
| 7150 | New Concord, Ohio | 2,262 | -14.8% |
| US Rank | Name | Population | Growth 2000-2017 |
|---|---|---|---|
| 5023 | Breese | 4,486 | 9.6% |
| 5029 | Beecher | 4,472 | 110.1% |
| 5039 | Sullivan | 4,458 | 2.2% |
| 5066 | Pittsfield | 4,419 | -4.5% |
| 5069 | Lebanon | 4,417 | 24.3% |
| 5078 | Tuscola | 4,409 | -1.6% |
| 5081 | Lawrenceville | 4,406 | -6.7% |
| 5124 | Sparta | 4,341 | -5.1% |
| 5126 | Cortland | 4,336 | 103.1% |
| 5172 | Hometown | 4,274 | -4.1% |
| 5182 | Freeburg | 4,262 | 4.2% |
| 5212 | Barrington Hills | 4,219 | 6.5% |
| 5214 | Paxton | 4,218 | -8.0% |
| 5230 | Anna | 4,187 | -18.6% |
| 5248 | Burnham | 4,159 | -0.2% |
| 5255 | Peotone | 4,152 | 21.6% |
| 5256 | Rosemont | 4,151 | -1.6% |
| 5304 | South Chicago Heights | 4,085 | 3.0% |
| 5314 | Morrison | 4,071 | -9.1% |
| 5317 | Caseyville | 4,066 | -6.6% |
| 5333 | Kildeer | 4,041 | 13.7% |
| 5336 | Dwight | 4,038 | -7.7% |
| 5370 | Eldorado | 3,994 | -11.6% |
| 5400 | St. Joseph | 3,959 | 32.8% |
| 5417 | Washington Park | 3,933 | -33.6% |
| 5420 | Lakewood | 3,928 | 65.0% |
| 5435 | Wonder Lake | 3,905 | 35.0% |
| 5458 | Dupo | 3,878 | -1.4% |
| 5463 | Millstadt | 3,873 | 30.9% |
| 5470 | Green Oaks | 3,862 | 6.7% |
| 5473 | Marshall | 3,860 | -1.3% |
| 5501 | Madison | 3,823 | -15.7% |
| 5506 | Smithton | 3,813 | 60.0% |
| 5528 | Indian Head Park | 3,787 | 2.8% |
| 5538 | Coal Valley | 3,775 | 4.1% |
| 5567 | Metamora | 3,732 | 36.4% |
| 5570 | Rochester | 3,729 | 29.0% |
| 5583 | Wadsworth | 3,707 | 9.6% |
| 5614 | Deer Park | 3,658 | 16.4% |
| 5626 | Dixmoor | 3,646 | -7.3% |
| 5630 | Hainesville | 3,645 | 69.2% |
| 5641 | Riverwoods | 3,626 | -5.9% |
| 5656 | Byron | 3,608 | 18.7% |
| 5667 | Oglesby | 3,598 | -1.1% |
| 5669 | Fairbury | 3,596 | -9.5% |
| 5714 | Le Roy | 3,544 | 6.0% |
| 5723 | Forsyth | 3,529 | 43.4% |
| 5724 | Red Bud | 3,529 | 2.6% |
| 5730 | Oregon | 3,518 | -13.4% |
| 5762 | Aledo | 3,477 | -3.6% |
| 5778 | Germantown Hills | 3,460 | 51.2% |
| 5782 | Johnston City | 3,454 | -2.5% |
| 5786 | Tolono | 3,449 | 27.0% |
| 5796 | Riverton | 3,431 | 10.6% |
| 5856 | Virden | 3,366 | -3.4% |
| 5907 | Sleepy Hollow | 3,313 | -7.1% |
| 5908 | Fulton | 3,312 | -14.7% |
| 5913 | Gibson City | 3,307 | -2.1% |
| 5934 | Georgetown | 3,290 | -9.1% |
| 5941 | New Baden | 3,280 | 8.9% |
| 5998 | Galena | 3,225 | -6.8% |
| 6021 | East Dundee | 3,192 | 6.8% |
| 6023 | Carlyle | 3,189 | -6.3% |
| 6053 | South Jacksonville | 3,165 | -8.8% |
| 6058 | Sumner | 3,160 | 210.1% |
| 6065 | Momence | 3,149 | -0.1% |
| 6073 | Gillespie | 3,142 | -7.5% |
| 6096 | Abingdon | 3,125 | -13.2% |
| 6154 | Cherry Valley | 3,078 | 37.8% |
| 6158 | Havana | 3,076 | -13.8% |
| 6180 | Nashville | 3,057 | -2.8% |
| 6191 | Westville | 3,039 | -4.0% |
| 6226 | North Barrington | 2,997 | 0.9% |
| 6235 | Winnebago | 2,989 | 0.4% |
| 6259 | Rushville | 2,968 | -7.7% |
| 6283 | Bushnell | 2,940 | -9.5% |
| 6340 | Heyworth | 2,885 | 16.9% |
| 6345 | Arcola | 2,882 | 1.3% |
| 6368 | Newton | 2,854 | -6.5% |
| 6372 | Savanna | 2,847 | -19.5% |
| 6396 | Mount Morris | 2,826 | -7.1% |
| 6428 | Knoxville | 2,795 | -11.8% |
| 6433 | McLeansboro | 2,786 | -5.3% |
| 6460 | Hamilton | 2,768 | -8.4% |
| 6479 | El Paso | 2,754 | 0.5% |
| 6487 | Lena | 2,750 | -5.0% |
| 6514 | Ford Heights | 2,731 | -20.6% |
| 6515 | Christopher | 2,730 | -3.9% |
| 6538 | Sheridan | 2,712 | 12.4% |
| 6557 | Round Lake Heights | 2,696 | 96.9% |
| 6567 | Marquette Heights | 2,688 | -3.8% |
| 6589 | Pawnee | 2,676 | 1.3% |
| 6605 | Casey | 2,664 | -9.3% |
| 6654 | Trenton | 2,619 | -0.1% |
| 6691 | Tilton | 2,584 | -21.2% |
| 6772 | Kenilworth | 2,520 | 1.1% |
| 6780 | Diamond | 2,508 | 77.8% |
| 6788 | Galva | 2,503 | -10.5% |
| 6811 | Fairmont City | 2,486 | 2.0% |
| 6815 | Carthage | 2,483 | -8.6% |
| 6844 | Villa Grove | 2,466 | -3.2% |
| 6866 | Thornton | 2,448 | -5.0% |
| 6879 | Carrollton | 2,441 | -6.0% |
| 6881 | Wayne | 2,439 | 12.6% |
| 6968 | White Hall | 2,372 | -9.7% |
| 7007 | Ina | 2,347 | -4.5% |
| 7009 | Amboy | 2,344 | -10.7% |
| 7086 | Davis Junction | 2,297 | 141.2% |
| 7119 | Cairo | 2,281 | -37.0% |
| 7120 | Altamont | 2,280 | -0.1% |
| 7121 | Farmington | 2,280 | -12.2% |
| 7131 | Henry | 2,273 | -10.2% |
| 7140 | Seneca | 2,268 | 10.5% |
| 7145 | Elwood | 2,265 | 36.8% |
| 7159 | Arthur | 2,253 | 1.3% |
| 7206 | Petersburg | 2,218 | -3.3% |
| 7210 | Polo | 2,213 | -10.6% |
| 7221 | Lewistown | 2,207 | -12.3% |
| 7259 | Mason City | 2,181 | -14.7% |
| 7291 | Oakbrook Terrace | 2,161 | -4.9% |
| 7304 | Brighton | 2,151 | -2.0% |
| 7322 | Tremont | 2,141 | 5.7% |
| 7324 | Nokomis | 2,140 | -10.2% |
| 7393 | Pecatonica | 2,102 | 4.5% |
| 7399 | Cambridge | 2,099 | -3.6% |
| 7403 | Aviston | 2,098 | 65.8% |
| 7486 | Elmwood | 2,059 | 6.2% |
| 7487 | Oakwood Hills | 2,058 | -6.6% |
| 7506 | Hinckley | 2,048 | 2.9% |
| 7511 | Lexington | 2,047 | 4.1% |
| 7561 | Roanoke | 2,019 | 1.3% |
| 7570 | Girard | 2,015 | -10.2% |
| 7573 | Carbon Cliff | 2,013 | 19.7% |
| 7586 | Minonk | 2,006 | -7.5% |
| 7640 | South Roxana | 1,978 | 4.8% |
| 7642 | Farmer City | 1,977 | -3.7% |
| 7647 | Mount Olive | 1,974 | -8.9% |
| 7648 | Prophetstown | 1,974 | -2.2% |
| 7660 | Catlin | 1,968 | -6.2% |
| 7669 | Bellevue | 1,962 | 3.9% |
| 7670 | Fisher | 1,961 | 18.8% |
| 7682 | Steeleville | 1,955 | -5.8% |
| 7698 | Phoenix | 1,948 | -9.6% |
| 7704 | Rockdale | 1,945 | 3.0% |
| 7721 | Alorton | 1,938 | -29.4% |
| 7755 | Mount Sterling | 1,922 | -7.5% |
| 7756 | New Athens | 1,922 | -3.0% |
| 7761 | Mackinaw | 1,920 | 21.8% |
| 7762 | Richmond | 1,920 | 64.8% |
| 7765 | Albion | 1,918 | -0.9% |
| 7775 | Athens | 1,911 | 10.1% |
| 7795 | Hodgkins | 1,897 | -11.1% |
| 7801 | Venice | 1,895 | -24.9% |
| 7819 | Sesser | 1,890 | -10.9% |
| 7831 | Merrionette Park | 1,882 | -6.0% |
| 7834 | Somonauk | 1,881 | 30.5% |
| 7854 | Prairie Grove | 1,870 | 81.0% |
| 7918 | Marissa | 1,839 | -14.0% |
| 7946 | Hudson | 1,825 | 20.2% |
| 7961 | Orion | 1,816 | 5.8% |
| 7967 | Hampton | 1,814 | 11.2% |
| 8042 | Lacon | 1,781 | -9.8% |
| 8124 | Stockton | 1,746 | -9.9% |
| 8136 | Zeigler | 1,742 | 4.5% |
| 8137 | Bridgeport | 1,741 | -19.4% |
| 8154 | Chenoa | 1,735 | -6.0% |
| 8169 | Maroa | 1,730 | 2.9% |
| 8177 | Moweaqua | 1,726 | -10.8% |
| 8185 | Jonesboro | 1,723 | -6.2% |
| 8186 | Kirkland | 1,723 | 46.8% |
| 8193 | De Pue | 1,719 | -6.4% |
| 8222 | Roodhouse | 1,706 | -22.9% |
| 8231 | Gilman | 1,702 | -5.0% |
| 8246 | Princeville | 1,696 | 2.2% |
| 8257 | Bunker Hill | 1,691 | -6.4% |
| 8268 | Vienna | 1,687 | 33.3% |
| 8275 | Bement | 1,684 | -5.4% |
| 8363 | Port Byron | 1,639 | 6.3% |
| 8390 | Atlanta | 1,629 | -1.2% |
| 8401 | Neoga | 1,625 | -12.3% |
| 8409 | Delavan | 1,621 | -11.2% |
| 8430 | Earlville | 1,610 | -10.5% |
| 8444 | Jerome | 1,607 | 14.0% |
| 8448 | East Dubuque | 1,606 | -19.5% |
| 8452 | Mount Carroll | 1,604 | -12.2% |
| 8460 | Southern View | 1,599 | -10.6% |
| 8461 | Carrier Mills | 1,598 | -15.0% |
| 8466 | Grayville | 1,596 | -8.2% |
| 8486 | Teutopolis | 1,588 | 1.5% |
| 8503 | Bannockburn | 1,579 | 10.1% |
| 8577 | North Pekin | 1,547 | -3.3% |
| 8586 | De Soto | 1,541 | -6.5% |
| 8588 | Limestone | 1,541 | -5.1% |
| 8605 | Oakwood | 1,532 | 2.0% |
| 8612 | Erie | 1,529 | -3.6% |
| 8616 | East Hazel Crest | 1,527 | -4.9% |
| 8623 | Herscher | 1,525 | -0.5% |
| 8624 | Manito | 1,525 | -11.9% |
| 8662 | Warsaw | 1,508 | -15.6% |
| 8701 | Port Barrington | 1,498 | 72.7% |
| 8702 | Waterman | 1,498 | 20.6% |
| 8712 | Mount Pulaski | 1,494 | -11.9% |
| 8713 | Williamsville | 1,494 | 4.1% |
| 8721 | Greenup | 1,490 | -3.3% |
| 8726 | Leland Grove | 1,488 | -5.8% |
| 8749 | Winchester | 1,480 | -10.7% |
| 8757 | Virginia | 1,476 | -14.4% |
| 8781 | Roxana | 1,465 | -8.9% |
| 8830 | Benld | 1,450 | -5.7% |
| 8867 | Dunlap | 1,434 | 48.9% |
| 8869 | Philo | 1,434 | 8.3% |
| 8911 | Gridley | 1,416 | -0.2% |
| 8924 | Crainville | 1,411 | 29.3% |
| 8927 | Kincaid | 1,410 | -2.3% |
| 8950 | Grandview | 1,405 | -8.2% |
| 8961 | Gardner | 1,401 | -2.4% |
| 8967 | Durand | 1,400 | 29.7% |
| 8996 | Oblong | 1,391 | -11.7% |
| 9016 | St. Elmo | 1,384 | -4.6% |
| 9039 | Okawville | 1,376 | 1.4% |
| 9069 | Hartford | 1,367 | -11.3% |
| 9089 | Forreston | 1,362 | -7.6% |
| 9090 | Clifton | 1,361 | 3.4% |
| 9100 | Capron | 1,355 | 21.3% |
| 9104 | Lanark | 1,354 | -14.5% |
| 9131 | North Utica | 1,344 | 37.8% |
| 9141 | Cerro Gordo | 1,339 | -6.8% |
| 9147 | Walnut | 1,335 | -8.4% |
| 9154 | New Berlin | 1,332 | 28.2% |
| 9157 | Warren | 1,332 | -10.7% |
| 9175 | Maple Park | 1,325 | 68.5% |
| 9182 | Granville | 1,319 | -6.4% |
| 9188 | Colchester | 1,317 | -11.9% |
| 9219 | Harristown | 1,307 | -2.4% |
| 9244 | Toluca | 1,301 | -2.6% |
| 9269 | Palestine | 1,295 | -5.6% |
| 9270 | Wyoming | 1,295 | -9.8% |
| 9298 | Long Creek | 1,288 | -8.1% |
| 9301 | Onarga | 1,287 | -10.3% |
| 9323 | Cambria | 1,280 | -3.9% |
| 9330 | Germantown | 1,279 | 7.0% |
| 9337 | Oquawka | 1,277 | -16.9% |
| 9341 | Bethany | 1,275 | -1.2% |
| 9370 | Barry | 1,263 | -7.3% |
| 9384 | Grant Park | 1,260 | -9.6% |
| 9391 | Rossville | 1,257 | 3.7% |
| 9397 | Valmeyer | 1,256 | 103.8% |
| 9417 | Tower Lakes | 1,250 | -6.2% |
| 9429 | Chrisman | 1,246 | -5.0% |
| 9438 | Hillcrest | 1,243 | 6.6% |
| 9473 | St. Jacob | 1,230 | 27.1% |
| 9474 | Waverly | 1,230 | -8.4% |
| 9503 | Sandoval | 1,221 | -14.8% |
| 9508 | Toledo | 1,220 | 4.0% |
| 9509 | Ashland | 1,219 | -10.3% |
| 9512 | Hanna City | 1,218 | 20.9% |
| 9515 | Ladd | 1,218 | -6.9% |
| 9536 | Norris City | 1,211 | 14.4% |
| 9542 | Sidney | 1,210 | 12.8% |
| 9551 | Milford | 1,208 | -12.0% |
| 9565 | Minier | 1,203 | -3.6% |
| 9576 | Hebron | 1,200 | 5.4% |
| 9590 | Cuba | 1,197 | -15.5% |
| 9602 | St. Anne | 1,193 | -1.5% |
| 9633 | Atwood | 1,182 | -9.8% |
| 9647 | Andalusia | 1,177 | 9.0% |
| 9652 | Toulon | 1,177 | -14.5% |
| 9666 | Homer | 1,171 | -2.3% |
| 9669 | Third Lake | 1,171 | -14.0% |
| 9672 | Kingston | 1,170 | 19.3% |
| 9673 | La Harpe | 1,170 | -15.4% |
| 9700 | Griggsville | 1,163 | -7.4% |
| 9711 | Malta | 1,160 | 18.9% |
| 9715 | Forrest | 1,159 | -5.1% |
| 9727 | Albers | 1,157 | 34.2% |
| 9738 | Big Rock | 1,155 | 25.8% |
| 9743 | Windsor | 1,154 | 60.5% |
| 9781 | Warrensburg | 1,142 | -11.2% |
| 9808 | Wamac | 1,135 | -17.3% |
| Year | Population | Rank in US |
|---|---|---|
| 2017 | 2,268 | 7,140 |
| 2016 | 2,281 | 7,103 |
| 2015 | 2,292 | 7,072 |
| 2014 | 2,306 | 7,048 |
| 2013 | 2,322 | 7,023 |
| 2012 | 2,337 | 6,987 |
| 2011 | 2,352 | 6,967 |
| 2010 | 2,371 | 6,934 |
| 2009 | 2,125 | 7,266 |
| 2008 | 2,128 | 7,243 |
| 2007 | 2,109 | 7,253 |
| 2006 | 2,074 | 7,291 |
| 2005 | 2,045 | 7,337 |
| 2004 | 2,045 | 7,311 |
| 2003 | 2,047 | 7,303 |
| 2002 | 2,043 | 7,299 |
| 2001 | 2,051 | 7,287 |
| 2000 | 2,052 | 7,275 |
| 1990 | 1,935 | 7,063 |