RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4396 locations in the last 30 days (4553 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/17/20253609 S WASHTENAW AVEBrighton Park12Completed2 daysAlderman's OfficeCity 311
6/28/20265155 S LONG AVEGarfield Ridge23Completed2 daysPhone CallCity 311
4/29/20261341 W GEORGE STLake View32Completed2 daysInternetCity 311
2/21/20261732 W POTOMAC AVEWest Town1Completed2 daysMobile DeviceCity 311
2/7/20267218 N ROGERS AVERogers Park49Completed2 daysInternetCity 311
11/5/20251263 W 74TH STWest Englewood17Completed2 daysPhone CallCity 311
6/14/20268000 S MARSHFIELD AVEAuburn Gresham17Completed2 daysPhone CallCity 311
10/21/20257210 S SPRINGFIELD AVEWest Lawn23Completed2 daysPhone CallCity 311
2/25/20261440 N WASHTENAW AVEWest Town26Completed2 daysPhone CallCity 311
3/29/20262638 W CULLERTON STSouth Lawndale25Completed2 daysInternetCity 311
4/14/20262724 N MAGNOLIA AVELincoln Park32Completed2 daysInternetCity 311
9/30/2025914 W 53RD STNew City20Completed2 daysMobile DeviceCity 311
3/25/2026559 N LEAMINGTON AVEAustin37Completed2 daysPhone CallCity 311
3/10/20261423 N OAKLEY BLVDWest Town1Completed2 daysInternetCity 311
7/23/20243939 S CALUMET AVEGrand Boulevard3Completed2 daysPhone CallCity 311
1/5/20267345 S MORGAN STEnglewood17Completed2 daysPhone CallCity 311
5/11/20261718 N CENTRAL PARK AVEHumboldt Park26Completed2 daysInternetCity 311
8/13/20252927 S ARCHER AVEBridgeport11Completed2 daysInternetCity 311
4/11/20266225 N HARLEM AVENorwood Park41Completed2 daysInternetCity 311
5/20/20262909 S WELLS STArmour Square11Completed2 daysInternetCity 311
12/22/20253335 W BELDEN AVELogan Square35Completed2 daysInternetCity 311
9/30/2025916 W 53RD STNew City20Completed2 daysMobile DeviceCity 311
3/30/20261334 W GEORGE STLake View32Completed2 daysInternetCity 311
12/22/20253800 W CORNELIA AVEAvondale30Completed2 daysAlderman's OfficeCity 311
7/6/2026821 E 82ND STChatham8Completed2 daysInternetCity 311
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