RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/5/20264001 W MADISONWest Garfield Park28Completed1 daySalesforce Mobile AppCity 311
4/14/20264639 W GRACE STPortage Park45Completed1 dayPhone CallCity 311
7/6/20268113 S PAULINA STAuburn Gresham17Completed1 dayPhone CallCity 311
4/27/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
1/14/20263637 N CLAREMONT AVENorth Center47Completed1 dayInternetCity 311
9/8/20264153 W NELSON STAvondale31Completed1 dayPhone CallCity 311
1/29/20262040 N SAWYER AVELogan Square26Completed1 dayMobile DeviceCity 311
6/29/202610909 S AVENUE EEast Side10Completed1 dayPhone CallCity 311
2/26/20261614 W BERTEAU AVELake View47Completed1 dayMobile DeviceCity 311
6/16/202610132 S LA SALLE STRoseland9Completed1 dayPhone CallCity 311
10/29/20251715 W ESTES AVERogers Park49Completed1 dayInternetCity 311
12/16/2025143 N PARKSIDE AVEAustin29Completed1 dayPhone CallCity 311
4/8/20265500 W WAVELAND AVEPortage Park30Completed1 dayPhone CallCity 311
12/2/20254817 W WEST WEST END AVEAustin28Completed1 dayPhone CallCity 311
2/23/20266270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
4/16/2026453 N HAMLIN AVEHumboldt Park27Completed1 dayInternetCity 311
9/24/20252135 W ARMITAGE AVELogan Square32Completed1 dayPhone CallCity 311
6/15/20267859 W ADDISON STDunning38Completed1 dayPhone CallCity 311
12/30/20256000 W HENDERSON STDunning30Completed1 dayAlderman's OfficeCity 311
4/6/20265806 N BERNARD STNorth Park39Completed1 dayMobile DeviceCity 311
3/19/20269763 S OGLESBY AVESouth Deering7Completed1 dayPhone CallCity 311
6/23/20262742 S PRINCETON AVEArmour Square11Completed1 dayPhone CallCity 311
12/18/20251890 N MILWAUKEE AVELogan Square32Completed1 dayInternetCity 311
5/7/20262601 W 55TH STGage Park15Completed1 dayAlderman's OfficeCity 311
6/3/20264136 N KEELER AVEIrving Park39Completed1 dayPhone CallCity 311
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