RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4468 locations in the last 30 days (4641 reports) · Last sighting 21 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.

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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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/5/20265338 N NEWCASTLE AVENorwood Park41Completed1 dayInternetCity 311
9/11/20255338 N KEDZIE AVENorth Park39Completed12 daysInternetCity 311
1/9/20265337 W WRIGHTWOOD AVEBelmont Cragin31Completed3 daysInternetCity 311
5/11/20265337 W WELLINGTON AVEBelmont Cragin31Completed2 daysPhone CallCity 311
5/31/20265337 W CULLOM AVEPortage Park38Completed4 daysMobile DeviceCity 311
8/22/20255337 W CARMEN AVEJefferson Park45Completed13 daysInternetCity 311
3/20/20265337 S UNION AVENew City16Completed4 daysPhone CallCity 311
10/8/20265337 S NATOMA AVEGarfield Ridge23Completed6 daysMobile DeviceCity 311
10/3/20265337 S NATOMA AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/3/20265337 S MULLIGAN AVEGarfield Ridge23Completed8 daysPhone CallCity 311
5/3/20265337 S MOODY AVEGarfield Ridge23Completed3 daysMobile DeviceCity 311
5/19/20265337 S MARYLAND AVEHyde Park20Completed1 dayMobile DeviceCity 311
5/29/20265337 S MARYLAND AVEHyde Park20Completed3 daysPhone CallCity 311
9/5/20255337 N SAWYER AVENorth Park39Completed13 daysInternetCity 311
4/26/20265337 N NAGLE AVEJefferson Park41Completed3 daysMobile DeviceCity 311
8/22/20255337 N MELVINA AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/15/20255337 N LATROBE AVEJefferson Park45Completed10 daysPhone CallCity 311
8/27/20255337 N LATROBE AVEJefferson Park45Completed12 daysPhone CallCity 311
8/7/20265337 N KEDZIE AVENorth Park39Completed11 daysPhone CallCity 311
10/3/20265337 N HOYNE AVELincoln Square40Completed13 daysInternetCity 311
9/8/20265336 W WOLFRAM STBelmont Cragin31Completed13 daysAlderman's OfficeCity 311
10/1/20265336 W MELROSE STPortage Park31Completed13 daysAlderman's OfficeCity 311
11/18/20255336 N WESTERN AVELincoln Square40Completed1 dayInternetCity 311
7/30/20265336 N WESTERN AVELincoln Square40Completed13 daysInternetCity 311
4/22/20265336 N WESTERN AVELincoln Square40Completed2 daysInternetCity 311
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