RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4528 locations in the last 30 days (4701 reports) · Last sighting 11 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/13/2026535 N WELLS STNear North Side42Completed9 daysMobile DeviceCity 311
7/3/2026535 N HAMLIN AVEHumboldt Park27Completed10 daysPhone CallCity 311
11/5/20255359 W PENSACOLA AVEPortage Park45Completed1 dayPhone CallCity 311
10/23/20255359 W PENSACOLA AVEPortage Park45Completed7 daysPhone CallCity 311
7/24/20265359 W PENSACOLA AVEPortage Park45Completed13 daysPhone CallCity 311
9/2/20265359 W FULLERTON AVEBelmont Cragin36Completed12 daysPhone CallCity 311
10/2/20265359 W FULLERTON AVEBelmont Cragin36Completed17 daysPhone CallCity 311
9/29/20265359 W CULLOM AVEPortage Park38Completed1 dayPhone CallCity 311
6/15/20265359 S SHERMAN PARKNew City20Completed8 daysInternetCity 311
8/7/20255359 S NEWCASTLE AVEGarfield Ridge23Completed13 daysAlderman's OfficeCity 311
8/7/20255359 S NASHVILLE AVEGarfield Ridge23Completed13 daysMobile DeviceCity 311
7/29/20255359 S NARRAGANSETT AVEGarfield Ridge23Completed6 daysInternetCity 311
6/27/20265359 S KOSTNER AVEWest Elsdon23Completed3 daysPhone CallCity 311
9/13/20255359 S CHRISTIANA AVEGage Park14Completed9 daysInternetCity 311
8/11/20255358 W DEMING PLBelmont Cragin31Completed10 daysPhone CallCity 311
7/29/20265358 S NATCHEZ AVEGarfield Ridge23Completed13 daysAlderman's OfficeCity 311
9/16/20255358 S NARRAGANSETT AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
6/25/20265358 S MELVINA AVEGarfield Ridge23Completed5 daysAlderman's OfficeCity 311
4/21/20265358 S LAFLIN STNew City16Completed0 daysInternetCity 311
8/3/20265358 S HERMITAGE AVENew City16Completed9 daysInternetCity 311
9/19/20255358 N MULLIGAN AVEJefferson Park41Completed11 daysPhone CallCity 311
4/30/20265358 N MULLIGAN AVEJefferson Park41Completed5 daysInternetCity 311
8/14/20265357 W DEVON AVEForest Glen39Completed12 daysPhone CallCity 311
2/6/20265357 S PRINCETON AVEFuller Park20Completed3 daysInternetCity 311
10/2/20265357 S NATCHEZ AVEGarfield Ridge23Completed12 daysAlderman's OfficeCity 311
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