RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4517 locations in the last 30 days (4685 reports) · Last sighting 19 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/18/20251533 S HOMAN AVENorth Lawndale24Completed0 daysInternetCity 311
1/14/20262854 N AVERS AVEAvondale31Completed0 daysPhone CallCity 311
12/23/2025900 N SPRINGFIELD AVEHumboldt Park37Completed0 daysInternetCity 311
12/23/2025822 N HARDING AVEHumboldt Park37Completed0 daysInternetCity 311
12/10/20253110 W HURON STHumboldt Park27Completed0 daysMobile DeviceCity 311
1/5/20263056 N RACINE AVELake View32Completed0 daysPhone CallCity 311
3/13/20264129 N MCVICKER AVEPortage Park38Completed0 daysInternetCity 311
4/24/20268727 S LAFLIN STAuburn Gresham21Completed0 daysMobile DeviceCity 311
4/24/20261848 W ESTES AVERogers Park49Completed0 daysMobile DeviceCity 311
1/12/20262100 N KILDAREHermosa35Completed0 daysSalesforce Mobile AppCity 311
11/6/20255145 N ASHLAND AVEUptown40Completed0 daysMobile DeviceCity 311
12/10/20253600 N PITTSBURGH AVEDunning38Completed0 daysInternetCity 311
12/23/2025827 N HARDING AVEHumboldt Park37Completed0 daysInternetCity 311
4/7/20262232 N LEAMINGTON AVEBelmont Cragin26Completed0 daysMobile DeviceCity 311
11/24/20254734 S ST LAWRENCE AVEGrand Boulevard3Completed0 daysMobile DeviceCity 311
4/2/20261614 W ROSCOE STLake View47Completed0 daysMobile DeviceCity 311
4/22/20268729 S HERMITAGE AVEAuburn Gresham18Completed0 daysMobile DeviceCity 311
2/9/20264900 S KEDZIE AVEBrighton Park14Completed0 daysPhone CallCity 311
3/19/20266611 N SHERIDAN RDRogers Park49Completed0 daysInternetCity 311
4/2/20263413 N MARSHFIELD AVELake View47Completed0 daysMobile DeviceCity 311
12/23/2025901 N PULASKI RDHumboldt Park37Completed0 daysInternetCity 311
2/9/20263915 N HAMILTON AVENorth Center47Completed0 daysMobile DeviceCity 311
12/4/20257213 S MOZART STChicago Lawn18Completed0 daysInternetCity 311
1/12/20262819 N RICHMONDAvondale35Completed0 daysSalesforce Mobile AppCity 311
6/15/20261773 N CLYBOURN AVELincoln Park43Completed0 daysMobile DeviceCity 311
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