RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4353 locations in the last 30 days (4517 reports) · Last sighting 21 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/20266905 W FOSTER AVENorwood Park41Completed10 daysInternetCity 311
9/27/20257215 W MYRTLE AVENorwood Park41Completed10 daysInternetCity 311
8/31/20266141 W GRAND AVEBelmont Cragin36Completed10 daysMobile DeviceCity 311
8/1/20253524 W 58TH STGage Park14Completed10 daysInternetCity 311
7/28/20253615 W OLIVE AVENorth Center47Completed10 daysMobile DeviceCity 311
10/4/20251961 W BALMORAL AVELincoln Square40Completed10 daysMobile DeviceCity 311
8/2/20256546 S CLAREMONT AVEChicago Lawn16Completed10 daysMobile DeviceCity 311
9/16/20255321 W WINNEMAC AVEJefferson Park45Completed10 daysMobile DeviceCity 311
8/31/202510557 S GEast Side10Completed10 daysInternetCity 311
7/14/20261125 W 19TH PLLower West Side25Completed10 daysInternetCity 311
8/29/20265423 S INGLESIDE AVEHyde Park5Completed10 daysMobile DeviceCity 311
7/28/20251417 W CULLERTON STLower West Side25Completed10 daysMobile DeviceCity 311
8/4/20262451 N JANSSEN AVELincoln Park32Completed10 daysInternetCity 311
8/3/20255014 N MEADE AVEJefferson Park45Completed10 daysInternetCity 311
7/24/20265020 N ALBANY AVEAlbany Park33Completed10 daysInternetCity 311
7/15/20261715 N TALMAN AVEWest Town26Completed10 daysInternetCity 311
7/11/20261618 N SAWYER AVEHumboldt Park26Completed10 daysInternetCity 311
7/11/202611841 S OAKLEY AVEMorgan Park19Completed10 daysInternetCity 311
8/4/20262947 W JARLATH STWest Ridge50Completed10 daysMobile DeviceCity 311
8/3/20266238 W BARRY AVEBelmont Cragin30Completed10 daysMobile DeviceCity 311
8/19/20252518 N MARMORA AVEBelmont Cragin30Completed10 daysMobile DeviceCity 311
8/2/20263600 W WOLFRAM STAvondale35Completed10 daysMobile DeviceCity 311
8/3/20266130 W MELROSE STDunning30Completed10 daysMobile DeviceCity 311
7/14/20267655 S LAFLIN STAuburn Gresham17Completed10 daysPhone CallCity 311
7/25/20263531 N BROADWAYLake View46Completed10 daysMobile DeviceCity 311
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