RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4560 locations in the last 30 days (4715 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/19/20251929 N HARDING AVEHermosa26Completed2 daysMobile DeviceCity 311
2/22/20262651 N CENTRAL PARK AVELogan Square35Completed2 daysInternetCity 311
6/1/20266156 S INGLESIDE AVEWoodlawn20Completed2 daysMobile DeviceCity 311
5/2/20265752 W GRACE STPortage Park38Completed2 daysInternetCity 311
6/24/2026712 N THROOP STWest Town27Completed2 daysMobile DeviceCity 311
5/19/20263417 N OZARK AVEDunning38Completed2 daysMobile DeviceCity 311
12/21/20255019 N MAJOR AVEJefferson Park45Completed2 daysMobile DeviceCity 311
3/7/20263522 W GRENSHAW STNorth Lawndale24Completed2 daysMobile DeviceCity 311
4/12/20264115 W DICKENS AVEHermosa35Completed2 daysInternetCity 311
4/14/20261237 W OAKDALE AVELake View32Completed2 daysMobile DeviceCity 311
6/22/20263933 N GREENVIEW AVELake View46Completed2 daysMobile DeviceCity 311
5/17/20267525 S GREEN STAuburn Gresham17Completed2 daysMobile DeviceCity 311
3/28/202610521 S WALLACE STRoseland21Completed2 daysPhone CallCity 311
12/31/2025420 W DIVERSEY PKWYLake View44Completed2 daysInternetCity 311
2/23/20261428 W IRVING PARK RDLake View47Completed2 daysInternetCity 311
6/2/20264617 N LOWELL AVEIrving Park39Completed2 daysInternetCity 311
10/8/2025715 S FEDERAL STLoop4Completed2 daysPhone CallCity 311
5/3/20263311 W 26TH STSouth Lawndale25Completed2 daysMobile DeviceCity 311
5/11/20264353 W 59TH STWest Lawn13Completed2 daysInternetCity 311
11/24/20256447 N BOSWORTH AVERogers Park49Completed2 daysPhone CallCity 311
10/8/20252725 S CENTRAL PARK AVESouth Lawndale22Completed2 daysPhone CallCity 311
11/5/20257117 S BENNETT AVESouth Shore5Completed2 daysPhone CallCity 311
3/8/20262512 S TRUMBULL AVESouth Lawndale22Completed2 daysInternetCity 311
5/11/20266012 S KEELER AVEWest Lawn13Completed2 daysInternetCity 311
11/11/20253700 W 83RD PLAshburn18Completed2 daysInternetCity 311
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