RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4386 locations in the last 30 days (4552 reports) · Last sighting 16 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
5/18/20262339 N AVERS AVELogan Square35Completed3 daysInternetCity 311
9/28/20252339 N CALIFORNIA AVELogan Square1Completed9 daysInternetCity 311
11/2/20252339 N CALIFORNIA AVELogan Square1Completed3 daysInternetCity 311
2/20/20262339 N CALIFORNIA AVELogan Square1Completed3 daysInternetCity 311
9/16/20252339 N KARLOV AVEHermosa35Completed9 daysMobile DeviceCity 311
11/13/20252339 N KARLOV AVEHermosa35Completed4 daysMobile DeviceCity 311
8/25/20252339 N KARLOV AVEHermosa35Completed11 daysMobile DeviceCity 311
9/30/20252339 N KARLOV AVEHermosa35Completed8 daysMobile DeviceCity 311
8/6/20252339 N KARLOV AVEHermosa35Completed13 daysMobile DeviceCity 311
10/14/20252339 N KARLOV AVEHermosa35Completed8 daysMobile DeviceCity 311
7/28/20252339 N KARLOV AVEHermosa35Completed8 daysMobile DeviceCity 311
7/26/20262339 N KARLOV AVEHermosa35Completed11 daysMobile DeviceCity 311
8/28/20262339 N SAWYER AVELogan Square35Completed17 daysInternetCity 311
8/3/20262339 N SPRINGFIELD AVELogan Square35Completed9 daysPhone CallCity 311
7/22/20262339 N SPRINGFIELD AVELogan Square35Completed9 daysPhone CallCity 311
8/26/20262339 N SPRINGFIELD AVELogan Square35Completed14 daysAlderman's OfficeCity 311
10/16/20252339 S DRAKE AVESouth Lawndale22Completed4 daysPhone CallCity 311
8/13/20262339 S SPRINGFIELD AVESouth Lawndale22Completed13 daysPhone CallCity 311
9/16/20262339 S SPRINGFIELD AVESouth Lawndale22Completed13 daysPhone CallCity 311
8/4/20252339 S TROY STSouth Lawndale25Completed10 daysPhone CallCity 311
8/6/20252339 S TROY STSouth Lawndale25Completed8 daysPhone CallCity 311
10/15/20262339 W 19TH STLower West Side25Open—Mobile DeviceCity 311
5/18/20262339 W GREENLEAF AVEWest Ridge50Completed3 daysInternetCity 311
7/31/20252339 W MORSE AVEWest Ridge40Completed7 daysInternetCity 311
8/16/20262339 W RICE STWest Town36Completed10 daysMobile DeviceCity 311
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