RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4685 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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/14/2026707 W BUCKINGHAM PLLake View44Completed8 daysInternetCity 311
9/23/20253808 N HERMITAGE AVELake View47Completed10 daysInternetCity 311
7/30/20251607 W MONTROSE AVELake View47Completed9 daysAlderman's OfficeCity 311
11/3/20253404 N SEMINARY AVELake View44Completed2 daysInternetCity 311
8/19/20263438 N PAULINA STLake View47Completed14 daysMobile DeviceCity 311
8/24/20263515 N MARSHFIELD AVELake View47Completed15 daysInternetCity 311
8/5/2025612 W STRATFORD PLLake View46Completed13 daysInternetCity 311
8/2/2026728 W WAVELAND AVELake View46Completed2 daysInternetCity 311
7/13/20263219 N HALSTED STLake View44Completed9 daysPhone CallCity 311
7/30/20251601 W MONTROSE AVELake View47Completed9 daysAlderman's OfficeCity 311
2/28/20261706 W SCHOOL STLake View32Completed3 daysInternetCity 311
9/23/20253750 N LAKE SHORE DR SBLake View46Completed9 daysMobile DeviceCity 311
11/2/20251250 W GRACE STLake View44Completed3 daysInternetCity 311
2/27/20261755 W HENDERSON STLake View32Completed4 daysPhone CallCity 311
12/12/20253934 N SOUTHPORT AVELake View46Completed4 daysInternetCity 311
9/23/20251717 W WOLFRAM STLake View32Completed9 daysMobile DeviceCity 311
3/2/20261755 W HENDERSON STLake View32Completed1 dayPhone CallCity 311
9/16/20264007 N PAULINA STLake View47Completed14 daysInternetCity 311
6/26/20261340 W ROSCOE STLake View44Completed5 daysInternetCity 311
8/22/20262814 N SHEFFIELD AVELake View44Completed11 daysMobile DeviceCity 311
4/16/20261215 W GEORGE STLake View32Completed1 dayPhone CallCity 311
8/6/20253630 N SOUTHPORT AVELake View44Completed12 daysInternetCity 311
9/2/20261053 W CORNELIA AVELake View44Completed14 daysPhone CallCity 311
9/21/20253624 N PAULINA STLake View47Completed11 daysPhone CallCity 311
2/28/20263825 N PINE GROVE AVELake View46Completed3 daysInternetCity 311
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