RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4672 locations in the last 30 days (4835 reports) · Last sighting 13 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/3/20263427 S MICHIGAN AVEDouglas3Completed1 dayPhone CallCity 311
12/16/202511801 S BELL AVEMorgan Park19Completed1 dayPhone CallCity 311
6/4/20261516 W WALTON STWest Town1Completed1 dayPhone CallCity 311
8/31/20268237 S MAPLEWOOD AVEAshburn18Completed1 dayPhone CallCity 311
12/16/2025820 W BELLE PLAINE AVEUptown46Completed1 dayPhone CallCity 311
9/28/20265411 S MERRIMAC AVEGarfield Ridge23Completed1 dayPhone CallCity 311
4/22/20265522 W 55TH STGarfield Ridge23Completed1 dayPhone CallCity 311
3/4/2026814 N KEDVALE AVEHumboldt Park37Completed1 dayPhone CallCity 311
11/5/20252315 W SUPERIOR STWest Town36Completed1 dayInternetCity 311
8/9/20261528 S WABASH AVENear South Side3Completed1 dayMobile DeviceCity 311
11/5/20251312 W CULLERTON STLower West Side25Completed1 dayMobile DeviceCity 311
5/4/20268400 S BRANDON AVESouth Chicago10Completed1 dayPhone CallCity 311
3/30/20266543 S KNOX AVEClearing13Completed1 dayInternetCity 311
5/10/20263604W W DIVERSEY AVEAvondale35Completed1 dayMobile DeviceCity 311
4/15/2026820 W BELMONT AVELake View44Completed1 dayInternetCity 311
8/3/20263542 W CERMAK RDNorth Lawndale24Completed1 dayInternetCity 311
2/26/20261441 W FARWELL AVERogers Park49Completed1 dayMobile DeviceCity 311
2/24/2026201 S CENTRAL AVEAustin29Completed1 dayInternetCity 311
2/26/20266811 N LAKEWOOD AVERogers Park49Completed1 dayInternetCity 311
1/5/20261729 N MARSHFIELD AVEWest Town32Completed1 dayInternetCity 311
7/1/20264019 W 56TH PLWest Elsdon13Completed1 dayPhone CallCity 311
7/21/20264117 W WELLINGTON AVEAvondale31Completed1 dayPhone CallCity 311
11/17/202510029 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
11/13/20252802 S WENTWORTH AVEArmour Square11Completed1 dayMobile DeviceCity 311
2/23/20265711 S NAGLE AVEGarfield Ridge13Completed1 dayInternetCity 311
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