RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4444 locations in the last 30 days (4622 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.

32080fewer → more

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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/2/20264342 W SHAKESPEARE AVEHermosa35Completed3 daysInternetCity 311
5/9/20267808 S WOODLAWN AVEGreater Grand Crossing8Completed3 daysMobile DeviceCity 311
3/13/20263401 N HAMLIN AVEAvondale30Completed3 daysAlderman's OfficeCity 311
12/26/20252952 W ESTES AVEWest Ridge50Completed3 daysInternetCity 311
8/7/20262340 N KEYSTONE AVEHermosa35Completed3 daysPhone CallCity 311
4/17/20266827 S MARSHFIELD AVEWest Englewood17Completed3 daysPhone CallCity 311
8/11/20267062 W DIVERSEY AVEMontclare29Completed3 daysInternetCity 311
10/7/202510259 S AVENUE JEast Side10Completed3 daysPhone CallCity 311
5/1/20268300 S BRANDON AVESouth Chicago10Completed3 daysAlderman's OfficeCity 311
3/20/20264854 W HOMER STBelmont Cragin36Completed3 daysInternetCity 311
5/12/20266629 S CARPENTER STEnglewood16Completed3 daysPhone CallCity 311
3/13/20262514 W 39TH PLBrighton Park12Completed3 daysPhone CallCity 311
1/10/20261411 N PARKSIDE AVEAustin29Completed3 daysInternetCity 311
11/7/20251344 S CLARK STNear South Side3Completed3 daysInternetCity 311
5/15/20263237 S LITUANICA AVEBridgeport11Completed3 daysAlderman's OfficeCity 311
2/13/20264510 N MULLIGAN AVEPortage Park38Completed3 daysInternetCity 311
1/30/20265700 W ADDISON STPortage Park38Completed3 daysAlderman's OfficeCity 311
8/17/2025719 W WAYMAN STNear West Side34Completed3 daysMobile DeviceCity 311
1/2/20262050 E 69TH STSouth Shore5Completed3 daysPhone CallCity 311
11/7/20254919 N MARMORA AVEJefferson Park45Completed3 daysPhone CallCity 311
3/9/20266650 S PULASKI RDWest Lawn13Completed3 daysAlderman's OfficeCity 311
9/15/20264055 W WELLINGTON AVEAvondale31Completed3 daysPhone CallCity 311
12/30/20254946 S KILPATRICK AVEGarfield Ridge14Completed3 daysAlderman's OfficeCity 311
9/15/20264055 W WELLINGTON AVEAvondale31Completed3 daysPhone CallCity 311
3/10/20267616 N GREENVIEW AVERogers Park49Completed3 daysPhone CallCity 311
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