RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4673 locations in the last 30 days (4830 reports) · Last sighting 18 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.

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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/30/20262030 N LEAMINGTON AVEBelmont Cragin36Completed13 daysPhone CallCity 311
8/28/20257353 S COLES AVESouth Shore7Completed13 daysPhone CallCity 311
7/14/20262916 N KILDARE AVEHermosa31Completed13 daysPhone CallCity 311
9/16/202611257 S MILLARD AVEMount Greenwood19Completed13 daysPhone CallCity 311
9/5/20252817 N HARDING AVEAvondale31Completed13 daysMobile DeviceCity 311
9/17/20268007 S KEDZIE AVEAshburn18Completed13 daysPhone CallCity 311
8/27/20253420 N LARAMIE AVEPortage Park31Completed13 daysInternetCity 311
8/19/20261930 N SEMINARY AVELincoln Park43Completed13 daysPhone CallCity 311
8/20/20252205 W ROSCOE STNorth Center32Completed13 daysInternetCity 311
8/30/20255716 N ORIOLE AVENorwood Park41Completed13 daysPhone CallCity 311
9/1/20264114 W BELLE PLAINE AVEIrving Park39Completed13 daysInternetCity 311
8/20/20255842 N MASON AVEJefferson Park45Completed13 daysInternetCity 311
8/7/20265115 W PATTERSON AVEPortage Park30Completed13 daysPhone CallCity 311
9/10/20264156 N KENNETH AVEIrving Park45Completed13 daysInternetCity 311
9/15/20267008 N ROCKWELL STWest Ridge50Completed13 daysInternetCity 311
8/21/2025455 W GRANT PLLincoln Park43Completed13 daysAlderman's OfficeCity 311
7/14/20264145 W FULLERTON AVEHermosa31Completed13 daysInternetCity 311
8/7/2025824 W NEWPORT AVELake View44Completed13 daysInternetCity 311
8/22/20251520 W BERTEAU AVELake View47Completed13 daysAlderman's OfficeCity 311
8/13/20262638 N SEMINARY AVELincoln Park43Completed13 daysInternetCity 311
7/31/20255410 W DAKIN STPortage Park30Completed13 daysInternetCity 311
8/23/20251812 W MELROSE STNorth Center32Completed13 daysInternetCity 311
7/30/20262025 N LEAMINGTON AVEBelmont Cragin36Completed13 daysPhone CallCity 311
8/30/20255217 S CENTRAL AVEGarfield Ridge23Completed13 daysPhone CallCity 311
9/5/20264656 N MAGNOLIA AVEUptown46Completed13 daysInternetCity 311
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