RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4709 locations in the last 30 days (4862 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.

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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/4/20265354 W AGATITE AVEPortage Park45Completed2 daysInternetCity 311
4/1/20265254 N MOBILE AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
3/5/20264933 W HUTCHINSON STPortage Park45Completed1 dayPhone CallCity 311
4/1/20264915 W WINNEMAC AVEForest Glen45Completed1 dayInternetCity 311
7/3/20265711 N MILWAUKEE AVEJefferson Park45Completed10 daysInternetCity 311
12/28/20255424 N MOBILE AVEJefferson Park45Completed2 daysMobile DeviceCity 311
3/5/20265110 W HUTCHINSON STPortage Park45Completed1 dayPhone CallCity 311
7/8/20265636 N MEADE AVENorwood Park45Completed5 daysAlderman's OfficeCity 311
7/2/20265353 N MULLIGAN AVEJefferson Park45Completed11 daysPhone CallCity 311
3/5/20265523 W PENSACOLA AVEPortage Park45Completed1 dayInternetCity 311
3/5/20266421 N MINNEHAHA AVEForest Glen45Completed1 dayInternetCity 311
7/2/20264107 N DICKINSON AVEPortage Park45Completed11 daysPhone CallCity 311
3/5/20265657 N AUSTIN AVEJefferson Park45Completed1 dayPhone CallCity 311
9/2/20254811 W ARGYLE STForest Glen45Completed1 dayPhone CallCity 311
3/5/20264929 W WINNEMAC AVEForest Glen45Completed1 dayAlderman's OfficeCity 311
6/28/20263741 W IRVING PARK RDIrving Park45Completed8 daysInternetCity 311
4/1/20265717 N MEADE AVENorwood Park45Completed1 dayMobile DeviceCity 311
3/5/20264653 N MAJOR AVEPortage Park45Completed1 dayMobile DeviceCity 311
8/31/20255130 W CULLOM AVEPortage Park45Completed11 daysInternetCity 311
5/7/20265850 N MULLIGAN AVENorwood Park45Completed4 daysPhone CallCity 311
4/1/20265247 W FOSTER AVEJefferson Park45Completed1 dayInternetCity 311
7/6/20265547 N MAJOR AVEJefferson Park45Completed0 daysPhone CallCity 311
9/2/20255648 N MCVICKER AVENorwood Park45Completed1 dayPhone CallCity 311
3/13/20264001 N MONTICELLO AVEIrving Park45Completed3 daysMobile DeviceCity 311
3/15/20264034 N LOWELL AVEIrving Park45Completed1 dayInternetCity 311
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