RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4368 locations in the last 30 days (4550 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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/4/20262702 N TROY STLogan Square35Completed16 daysMobile DeviceCity 311
1/12/20262200 N PULASKIHermosa35Completed0 daysSalesforce Mobile AppCity 311
6/10/20263064 N ELBRIDGE AVEAvondale35Completed1 dayAlderman's OfficeCity 311
5/30/20263313 W BELDEN AVELogan Square35Completed4 daysMobile DeviceCity 311
10/15/20252100 N PULASKI RDHermosa35Completed7 daysInternetCity 311
1/9/20262100 N PULASKI RDHermosa35Completed3 daysInternetCity 311
9/2/20253227 W ADDISON STAvondale35Completed13 daysInternetCity 311
9/2/20253580 N ELSTON AVEAvondale35Completed13 daysInternetCity 311
10/17/20252803 N RIDGEWAY AVEAvondale35Completed5 daysInternetCity 311
7/22/20263452 W DIVERSEY AVEAvondale35Completed14 daysMobile DeviceCity 311
9/3/20253903 W FULLERTON AVELogan Square35Completed12 daysAlderman's OfficeCity 311
7/27/20263715 N RICHMOND STIrving Park35Completed10 daysInternetCity 311
8/11/20262727 N TROY STLogan Square35Completed10 daysAlderman's OfficeCity 311
8/14/20262835 N ELSTON AVEAvondale35Completed10 daysAlderman's OfficeCity 311
1/14/20262130 N KEDZIE AVELogan Square35Completed1 dayPhone CallCity 311
5/11/20262819 N RICHMONDAvondale35Completed0 daysSalesforce Mobile AppCity 311
8/20/20262727 N TROY STLogan Square35Completed1 dayPhone CallCity 311
7/22/20263038 W MEDILL AVELogan Square35Completed14 daysAlderman's OfficeCity 311
1/9/20263760 W FULLERTON AVELogan Square35Completed3 daysPhone CallCity 311
10/19/20253503 W PALMER STLogan Square35Completed7 daysMobile DeviceCity 311
7/22/20263421 W MEDILL AVELogan Square35Completed14 daysMobile DeviceCity 311
1/13/20264338 W SHAKESPEARE AVEHermosa35Completed1 dayPhone CallCity 311
1/9/20263313 W BELDEN AVELogan Square35Completed3 daysInternetCity 311
2/10/20262130 N KEDZIE AVELogan Square35Completed0 daysPhone CallCity 311
2/9/20262227 N SPAULDING AVELogan Square35Completed1 dayMobile DeviceCity 311
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