RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4517 locations in the last 30 days (4668 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.

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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/29/20261852 N KEELER AVEHermosa26Completed1 dayInternetCity 311
2/12/20265062 N KIMBALL AVENorth Park39Completed1 dayInternetCity 311
5/5/20262550 N SAWYER AVELogan Square35Completed1 dayInternetCity 311
2/5/20264345 W 55TH STWest Elsdon13Completed1 dayInternetCity 311
1/5/20261246 W 50TH STNew City20Completed1 dayInternetCity 311
5/5/20263267 W WRIGHTWOOD AVELogan Square35Completed1 dayInternetCity 311
9/16/20254730 W FLOURNOY STAustin24Completed1 dayPhone CallCity 311
8/25/20256247 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
9/30/20253254 S LOWE AVEBridgeport11Completed1 dayPhone CallCity 311
2/26/20265626 N JERSEY AVENorth Park39Completed1 dayPhone CallCity 311
7/7/202612258 S PRINCETON AVEWest Pullman9Completed1 dayInternetCity 311
2/12/20266037 W DAKIN STDunning38Completed1 dayPhone CallCity 311
3/30/202610059 S STATE STRoseland9Completed1 dayMobile DeviceCity 311
5/5/20263263 W WRIGHTWOOD AVELogan Square35Completed1 dayInternetCity 311
5/7/20265201 S ARTESIAN AVEGage Park15Completed1 dayPhone CallCity 311
6/4/20262220 W GRANVILLE AVEWest Ridge50Completed1 dayMobile DeviceCity 311
6/1/20264210 S EMERALD AVENew City11Completed1 dayPhone CallCity 311
4/14/20261111 W 71ST STEnglewood17Completed1 dayInternetCity 311
10/1/20255033 W BERTEAU AVEPortage Park38Completed1 dayAlderman's OfficeCity 311
11/4/20254724 N ST LOUIS AVEAlbany Park33Completed1 dayMobile DeviceCity 311
6/15/20262555 N CLARK STLincoln Park43Completed1 dayInternetCity 311
12/11/20255549 S PERRY AVEWashington Park20Completed1 dayPhone CallCity 311
12/16/20255026 S WESTERN AVEGage Park15Completed1 dayInternetCity 311
9/30/20264804 S FORRESTVILLE AVEGrand Boulevard3Completed1 dayPhone CallCity 311
1/5/20264310 N MARMORA AVEPortage Park38Completed1 dayInternetCity 311
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