RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4617 locations in the last 30 days (4771 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.

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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
7/18/20265453 N LINDER AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/12/20266831 S KOMENSKY AVEWest Lawn23Completed12 daysPhone CallCity 311
7/19/20266705 N WASHTENAW AVEWest Ridge50Completed12 daysMobile DeviceCity 311
9/18/20254541 S PRAIRIE AVEGrand Boulevard3Completed12 daysPhone CallCity 311
9/17/20253200 N WILTON AVELake View44Completed12 daysInternetCity 311
8/2/20264250 W MONTROSE AVEIrving Park39Completed12 daysInternetCity 311
8/29/20251003 N DAMEN AVEWest Town1Completed12 daysInternetCity 311
9/12/2025457 W 46TH STNew City15Completed12 daysAlderman's OfficeCity 311
8/29/20267022 S ROCKWELL STChicago Lawn17Completed12 daysMobile DeviceCity 311
7/24/20261516 W HURON STWest Town1Completed12 daysMobile DeviceCity 311
9/18/20253614 W GEORGEAvondale35Completed12 daysSalesforce Mobile AppCity 311
7/31/20262307 W MORSE AVEWest Ridge40Completed12 daysInternetCity 311
8/29/20255708 N KEYSTONE AVENorth Park39Completed12 daysPhone CallCity 311
7/15/20269601 S DOBSON AVEPullman8Completed12 daysAlderman's OfficeCity 311
9/24/20266550 S ABERDEEN STEnglewood16Completed12 daysPhone CallCity 311
8/28/20253525 N NEVA AVEDunning38Completed12 daysInternetCity 311
10/2/20256041 W FULLERTON AVEBelmont Cragin36Completed12 daysPhone CallCity 311
7/22/20261849 N DAYTON STLincoln Park43Completed12 daysInternetCity 311
9/10/20264305 W 47TH STArcher Heights14Completed12 daysInternetCity 311
8/28/20253709 N NOTTINGHAM AVEDunning38Completed12 daysPhone CallCity 311
8/13/20252209 N SEMINARY AVELincoln Park43Completed12 daysAlderman's OfficeCity 311
7/31/20267529 N OAKLEY AVEWest Ridge49Completed12 daysPhone CallCity 311
8/8/20262101 W HOOD AVEWest Ridge40Completed12 daysMobile DeviceCity 311
8/31/20252353 S ST LOUIS AVESouth Lawndale22Completed12 daysMobile DeviceCity 311
8/15/20254954 W FLETCHER STBelmont Cragin31Completed12 daysAlderman's OfficeCity 311
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