RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4414 locations in the last 30 days (4568 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/1/20262000 N ORLEANS STLincoln Park43Open—Mobile DeviceCity 311
6/15/20262000 N ORLEANS STLincoln Park43Completed1 dayMobile DeviceCity 311
8/8/20252000 N RACINE AVELincoln Park2Completed12 daysAlderman's OfficeCity 311
3/13/20262000 S LOOMIS STLower West Side25Completed4 daysInternetCity 311
7/27/20262000 S LOOMIS STLower West Side25Completed10 daysInternetCity 311
9/11/20262000 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
7/27/20262000 S LOOMIS STLower West Side25Completed10 daysInternetCity 311
2/27/20262000 S MAY STLower West Side25Completed4 daysInternetCity 311
7/23/20262000 S MAY STLower West Side25Completed5 daysMobile DeviceCity 311
7/20/20262000 S WABASH AVENear South Side3Completed14 daysMobile DeviceCity 311
7/31/20262000 W 51ST STNew City15Completed19 daysAlderman's OfficeCity 311
1/23/20262000 W 51ST STNew City15Completed4 daysPhone CallCity 311
6/29/20262000 W 51ST STNew City15Completed7 daysPhone CallCity 311
9/25/20262000 W 69TH PLWest Englewood17Completed14 daysPhone CallCity 311
9/10/20252000 W 70TH PLWest Englewood17Completed12 daysPhone CallCity 311
3/19/20262000 W 82ND PLAuburn Gresham18Completed1 dayInternetCity 311
1/8/20262000 W BIRCHWOOD AVERogers Park49Completed4 daysPhone CallCity 311
1/8/20262000 W FARGO AVERogers Park49Completed4 daysPhone CallCity 311
9/15/20252000 W LEE PLWest Town36Completed8 daysAlderman's OfficeCity 311
9/15/20252000 W SUPERIOR STWest Town36Completed8 daysAlderman's OfficeCity 311
3/20/20262001G N HONORE STLogan Square32Completed3 daysMobile DeviceCity 311
11/25/20252001H N HONORE STLogan Square32Completed3 daysMobile DeviceCity 311
6/24/20262001H N HONORE STLogan Square32Completed7 daysMobile DeviceCity 311
2/13/20262001 N HALSTED STLincoln Park43Completed3 daysInternetCity 311
5/19/20262001 N HONORE STLogan Square32Completed2 daysInternetCity 311
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