RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4611 locations in the last 30 days (4782 reports) · Last sighting 11 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/24/20263104 N KOLMAR AVEHermosa31Completed0 daysPhone CallCity 311
1/16/20265056 S LA CROSSE AVEGarfield Ridge23Completed0 daysInternetCity 311
8/5/20265121 S WOODLAWN AVEHyde Park4Completed0 daysInternetCity 311
11/5/20256043 S KOMENSKY AVEWest Lawn23Completed0 daysInternetCity 311
3/18/20266035 W DAKIN STDunning38Completed0 daysMobile DeviceCity 311
2/26/20264748 S AVERS AVEArcher Heights14Completed0 daysPhone CallCity 311
3/25/20264846 N DAMEN AVELincoln Square47Completed0 daysMobile DeviceCity 311
3/24/20263235 W OLIVE AVENorth Park39Completed0 daysPhone CallCity 311
11/19/202511030 S DRAKE AVEMount Greenwood19Completed0 daysPhone CallCity 311
2/4/20262900 N RACINE AVELake View32Completed0 daysMobile DeviceCity 311
11/19/20255801 W DICKENS AVEBelmont Cragin29Completed0 daysInternetCity 311
4/7/20262719 S KEDVALE AVESouth Lawndale22Completed0 daysInternetCity 311
6/15/20265857 W 63RD STClearing13Completed0 daysMobile DeviceCity 311
2/9/20262102 N PULASKI RDHermosa35Completed0 daysInternetCity 311
2/9/20262548 N MONITOR AVEBelmont Cragin30Completed0 daysPhone CallCity 311
1/6/20263724 W 81ST STAshburn18Completed0 daysInternetCity 311
4/8/20264580 N MELVINA AVEPortage Park38Completed0 daysMobile DeviceCity 311
4/7/20265138 W CHICAGO AVEAustin37Completed0 daysPhone CallCity 311
5/15/20265511 N RAVENSWOOD AVEEdgewater40Completed0 daysMobile DeviceCity 311
11/7/20256629 S ELLIS AVEWoodlawn20Completed0 daysPhone CallCity 311
3/30/20265934 N HERMITAGE AVEEdgewater40Completed0 daysInternetCity 311
11/19/20253854 W 110TH PLMount Greenwood19Completed0 daysPhone CallCity 311
4/6/2026617 W DIVERSEY AVELincoln Park43Completed0 daysInternetCity 311
7/8/20265200 S BERKELEY AVEHyde Park5Completed0 daysInternetCity 311
12/15/20252315 N MCVICKER AVEBelmont Cragin36Completed0 daysMobile DeviceCity 311
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