RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4647 locations in the last 30 days (4803 reports) · Last sighting yesterday

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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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/9/20262100 N AVERS AVELogan Square35Completed1 dayPhone CallCity 311
3/30/20266506 S KILDARE AVEWest Lawn13Completed1 dayAlderman's OfficeCity 311
11/4/20254451 S INDIANA AVEGrand Boulevard3Completed1 dayPhone CallCity 311
4/8/20266947 S PEORIA STEnglewood16Completed1 dayAlderman's OfficeCity 311
6/23/20261809 E 78TH STSouth Shore8Completed1 dayInternetCity 311
12/10/20253746 W MARQUETTE RDWest Lawn23Completed1 dayPhone CallCity 311
3/16/20267538 N MAPLEWOOD AVEWest Ridge50Completed1 dayPhone CallCity 311
5/4/20263810N N FRANCISCO AVEIrving Park33Completed1 dayMobile DeviceCity 311
11/24/20251745 W MELROSE STLake View32Completed1 dayMobile DeviceCity 311
3/31/20263731 W GIDDINGS STAlbany Park33Completed1 dayMobile DeviceCity 311
3/4/20261751 W ROSCOE STLake View32Completed1 dayInternetCity 311
1/27/20265327 W WOLFRAM STBelmont Cragin31Completed1 dayPhone CallCity 311
3/17/20267548 W ADDISON STDunning38Completed1 dayInternetCity 311
6/2/20264625 N HAMILTON AVELincoln Square47Completed1 dayPhone CallCity 311
2/5/20262122 N LATROBE AVEBelmont Cragin36Completed1 dayAlderman's OfficeCity 311
6/22/2026120 E 49TH STGrand Boulevard3Completed1 dayMobile DeviceCity 311
12/2/202512258 S PRINCETON AVEWest Pullman9Completed1 dayInternetCity 311
3/11/20266155 N FAIRFIELD AVEWest Ridge40Completed1 dayInternetCity 311
6/30/20265451 N BERNARD STNorth Park39Completed1 dayPhone CallCity 311
11/17/20257315 S GREEN STEnglewood17Completed1 dayPhone CallCity 311
9/22/20252816 W 83RD PLAshburn18Completed1 dayPhone CallCity 311
3/5/20262604 N MAJOR AVEBelmont Cragin30Completed1 dayAlderman's OfficeCity 311
6/10/2026245 W 25TH PLArmour Square11Completed1 dayAlderman's OfficeCity 311
3/11/20265312 N MASON AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
11/20/2025939 N ORLEANS STNear North Side27Completed1 dayPhone CallCity 311
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