RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4627 locations in the last 30 days (4788 reports) · Last sighting 17 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/20263924 N JANSSEN AVELake View46Completed1 dayPhone CallCity 311
9/11/20255738 N NATOMA AVENorwood Park41Completed1 dayPhone CallCity 311
7/15/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
4/15/20268534 S OGLESBY AVESouth Chicago8Completed1 dayPhone CallCity 311
3/30/20261337 W HENDERSON STLake View44Completed1 dayPhone CallCity 311
4/23/20261321 W HURON STWest Town27Completed1 dayInternetCity 311
6/4/20264306 W 21ST PLNorth Lawndale24Completed1 dayPhone CallCity 311
2/11/20263436 W 107TH STMount Greenwood19Completed1 dayPhone CallCity 311
10/22/20252248 N MAPLEWOOD AVELogan Square1Completed1 dayPhone CallCity 311
4/7/20261630 N KEELER AVEHumboldt Park26Completed1 dayInternetCity 311
3/26/20265153 W NELSON STBelmont Cragin31Completed1 dayPhone CallCity 311
8/5/20264746 S HAMLIN AVEArcher Heights14Completed1 dayPhone CallCity 311
3/30/20268555 S KOSTNER AVEAshburn18Completed1 dayInternetCity 311
4/9/20262656 W MONTROSE AVEAlbany Park40Completed1 dayPhone CallCity 311
4/28/20263946 W 16TH STNorth Lawndale24Completed1 dayPhone CallCity 311
11/6/20252538 N KILDARE AVEHermosa31Completed1 dayMobile DeviceCity 311
3/12/2026446 N HAMLIN AVEHumboldt Park37Completed1 dayPhone CallCity 311
8/19/20262241 N WAYNE AVELincoln Park2Completed1 dayPhone CallCity 311
2/26/20266247 N NAPER AVENorwood Park45Completed1 dayInternetCity 311
8/26/20261303 W WELLINGTON AVELake View32Completed1 dayPhone CallCity 311
2/17/20261901 W 59TH STWest Englewood16Completed1 dayPhone CallCity 311
2/17/20265524 S HONORE STWest Englewood16Completed1 dayPhone CallCity 311
3/16/20264741 N KEATING AVEIrving Park39Completed1 dayInternetCity 311
1/5/20265850 N MULLIGAN AVENorwood Park45Completed1 dayPhone CallCity 311
6/10/20262452 S SPAULDING AVESouth Lawndale25Completed1 dayPhone CallCity 311
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