RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4702 locations in the last 30 days (4861 reports) · Last sighting 14 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/5/20261618 S ALLPORT STLower West Side25Completed1 dayInternetCity 311
11/11/2025850 E 88TH PLChatham8Completed1 dayMobile DeviceCity 311
1/12/20266419 S LAMON AVEClearing13Completed1 dayInternetCity 311
6/10/20263619 N ALBANY AVEIrving Park35Completed1 dayMobile DeviceCity 311
1/27/20263008 W 53RD PLGage Park14Completed1 dayAlderman's OfficeCity 311
2/11/20262019 W OHIO STWest Town36Completed1 dayPhone CallCity 311
4/21/20265200 W BYRON STPortage Park30Completed1 dayAlderman's OfficeCity 311
1/1/20265934 N HERMITAGE AVEEdgewater40Completed1 dayInternetCity 311
11/12/20253847 N LAWNDALE AVEIrving Park30Completed1 dayInternetCity 311
4/8/20263932 N CLAREMONT AVENorth Center47Completed1 dayPhone CallCity 311
1/4/20261416 W GRAND AVEWest Town1Completed1 dayMobile DeviceCity 311
1/28/20265898 N HARLEM AVENorwood Park41Completed1 dayPhone CallCity 311
11/17/20252653 S KARLOV AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
11/19/20256259 W HOLBROOK STNorwood Park39Completed1 dayPhone CallCity 311
11/5/202510515 S DR MARTIN LUTHER KING JR DRRoseland9Completed1 dayPhone CallCity 311
12/16/20253047 N SPAULDING AVEAvondale35Completed1 dayPhone CallCity 311
6/2/20266600 W 64TH PLClearing13Completed1 dayInternetCity 311
2/10/202611153 S GREEN STMorgan Park21Completed1 dayPhone CallCity 311
1/8/20261202 W WEBSTER AVELincoln Park2Completed1 dayInternetCity 311
12/11/20257951 S PAULINA STAuburn Gresham17Completed1 dayInternetCity 311
11/12/20252428 W ROOSEVELT RDNear West Side28Completed1 dayPhone CallCity 311
11/6/20253415 S RACINE AVEBridgeport11Completed1 dayInternetCity 311
3/9/20262823 S SPAULDING AVESouth Lawndale22Completed1 dayMobile DeviceCity 311
1/22/2026800 S INDEPENDENCE BLVDWest Garfield Park24Completed1 dayPhone CallCity 311
3/5/20261322 W 32ND PLBridgeport11Completed1 dayInternetCity 311
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