RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4249 locations in the last 30 days (4431 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/14/20262107 N KEYSTONE AVEHermosa35Completed8 daysMobile DeviceCity 311
6/30/20265200 W BYRON STPortage Park30Completed8 daysAlderman's OfficeCity 311
9/23/20255431 N LINDER AVEJefferson Park45Completed8 daysMobile DeviceCity 311
8/21/202535 W 104TH PLRoseland9Completed8 daysInternetCity 311
8/26/20266714 W DIVERSEY AVEMontclare36Completed8 daysPhone CallCity 311
7/28/20252732 N MONTICELLO AVELogan Square35Completed8 daysMobile DeviceCity 311
9/23/2025123 E PERSHING RDGrand Boulevard3Completed8 daysPhone CallCity 311
10/16/20254419 S EMERALD AVENew City15Completed8 daysInternetCity 311
7/30/20254017 N PLAINFIELD AVEDunning38Completed8 daysAlderman's OfficeCity 311
8/27/202610115 S YALE AVERoseland9Completed8 daysPhone CallCity 311
8/21/20255612 S NARRAGANSETT AVEGarfield Ridge13Completed8 daysInternetCity 311
7/2/20264216 S WABASH AVEGrand Boulevard3Completed8 daysPhone CallCity 311
7/31/20256225 S ALBANY AVEChicago Lawn15Completed8 daysMobile DeviceCity 311
7/13/20263305 W EASTWOOD AVEAlbany Park33Completed8 daysInternetCity 311
8/11/2025627 N LOCKWOOD AVEAustin37Completed8 daysPhone CallCity 311
8/5/20265243 W ROSCOE STPortage Park31Completed8 daysInternetCity 311
9/10/20253734 W 70TH PLWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/9/20262136 S FAIRFIELD AVESouth Lawndale25Completed8 daysAlderman's OfficeCity 311
9/24/20251223 W GEORGE STLake View32Completed8 daysAlderman's OfficeCity 311
8/31/20252451 S SAWYER AVESouth Lawndale25Completed8 daysMobile DeviceCity 311
10/14/20254718 W MCLEAN AVEBelmont Cragin26Completed8 daysMobile DeviceCity 311
9/15/20256440 S JUSTINE STWest Englewood16Completed8 daysPhone CallCity 311
7/30/20253409 N OZARK AVEDunning38Completed8 daysPhone CallCity 311
9/24/20251219 W GEORGE STLake View32Completed8 daysAlderman's OfficeCity 311
10/7/20255440 N LIEB AVEJefferson Park45Completed8 daysMobile DeviceCity 311
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