RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4477 locations in the last 30 days (4642 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/28/20254743 N MAPLEWOOD AVELincoln Square40Completed1 dayInternetCity 311
9/22/2026217 W VAN BUREN STLoop34Completed1 dayMobile DeviceCity 311
11/6/20253622 N OZANAM AVEDunning38Completed1 dayPhone CallCity 311
2/11/20265340 S MEADE AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
2/12/20265705 N MOBILE AVENorwood Park45Completed1 dayInternetCity 311
4/23/20263215 N OTTAWA AVEDunning38Completed1 dayMobile DeviceCity 311
11/16/20251920 W FARRAGUT AVELincoln Square40Completed1 dayInternetCity 311
4/9/20261074 N MARSHFIELD AVEWest Town1Completed1 dayMobile DeviceCity 311
2/25/20267816 S EMERALD AVEAuburn Gresham17Completed1 dayInternetCity 311
1/28/20267333 S EBERHART AVEGreater Grand Crossing6Completed1 dayInternetCity 311
4/22/20261739 W NEWPORT AVELake View47Completed1 dayInternetCity 311
12/2/202510657 S PEORIA STWashington Heights21Completed1 dayInternetCity 311
11/19/2025161 W ELM STNear North Side27Completed1 dayInternetCity 311
3/3/20262509 W POPE JOHN PAUL II DRBrighton Park12Completed1 dayInternetCity 311
2/11/20267624 W SCHOOL STDunning38Completed1 dayMobile DeviceCity 311
11/12/20252141 S CENTRAL PARK AVENorth Lawndale24Completed1 dayInternetCity 311
3/5/20264065 N KILBOURN AVEIrving Park45Completed1 dayMobile DeviceCity 311
12/29/202598 S MCCORMICK PL BUSWAYLoop42Completed1 dayInternetCity 311
2/18/20265310 N NATOMA AVENorwood Park41Completed1 dayPhone CallCity 311
12/8/20255659 S MARSHFIELD AVEWest Englewood16Completed1 dayInternetCity 311
2/18/20266300 S WOOD STWest Englewood15Completed1 dayPhone CallCity 311
3/3/20266440 S WINCHESTER AVEWest Englewood16Completed1 dayInternetCity 311
11/20/20258040 S EMERALD AVEAuburn Gresham6Completed1 dayInternetCity 311
1/19/2026826 W ALTGELD STLincoln Park43Completed1 dayMobile DeviceCity 311
3/26/20265617 N CENTRAL AVEJefferson Park45Completed1 dayMobile DeviceCity 311
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