RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/13/20256321 N NEENAH AVENorwood Park45Completed4 daysAlderman's OfficeCity 311
5/12/20266321 N LAKEWOOD AVEEdgewater48Completed3 daysMobile DeviceCity 311
9/5/20266321 N KEELER AVEForest Glen39Completed9 daysInternetCity 311
12/3/20256321 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
8/14/20256320 W WARWICK AVEDunning38Completed7 daysMobile DeviceCity 311
9/21/20256320 W WARWICK AVEDunning38Completed9 daysMobile DeviceCity 311
8/22/20256320 W HOLBROOK STNorwood Park39Completed11 daysAlderman's OfficeCity 311
4/7/20266320 W 64TH PLClearing13Completed2 daysMobile DeviceCity 311
8/27/20256320 S TRIPP AVEWest Lawn13Completed6 daysAlderman's OfficeCity 311
9/28/20266320 S KILDARE AVEWest Lawn13Open—InternetCity 311
4/11/20266320 N TALMAN AVEWest Ridge50Completed2 daysPhone CallCity 311
8/2/20256320 N PAULINA STEdgewater40Completed3 daysMobile DeviceCity 311
9/14/20266320 N LENOX AVEForest Glen39Completed8 daysMobile DeviceCity 311
5/9/20266320 N CLAREMONT AVEWest Ridge50Completed4 daysMobile DeviceCity 311
8/18/2026631 W WELLINGTON AVELake View44Completed13 daysInternetCity 311
9/14/2026631 N KEDZIE AVEHumboldt Park27Completed4 daysInternetCity 311
6/8/2026631 N HAMLIN AVEHumboldt Park27Completed3 daysPhone CallCity 311
5/29/2026631 N HAMLIN AVEHumboldt Park27Completed4 daysPhone CallCity 311
6/2/2026631 N HAMLIN AVEHumboldt Park27Completed6 daysPhone CallCity 311
8/13/20256319 W PATTERSON AVEDunning38Completed9 daysInternetCity 311
11/11/20256319 W HOLBROOK STNorwood Park39Completed2 daysMobile DeviceCity 311
10/21/20256319 W HENDERSON STDunning30Completed6 daysInternetCity 311
8/13/20256319 W BERENICE AVEDunning38Completed8 daysInternetCity 311
7/1/20266319 S KILDARE AVEWest Lawn13Completed6 daysPhone CallCity 311
8/3/20266319 S CENTRAL AVEClearing13Completed10 daysInternetCity 311
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