RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4416 locations in the last 30 days (4580 reports) · Last sighting 22 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20253710 N ELSTON AVEIrving Park35Completed10 daysMobile DeviceCity 311
8/26/20255800 N MARKHAM AVEJefferson Park45Completed10 daysAlderman's OfficeCity 311
7/10/20266200 S HERMITAGE AVEWest Englewood15Completed10 daysPhone CallCity 311
9/2/20254140 5TH AVEWest Garfield Park24Completed10 daysInternetCity 311
7/10/20264529 W DEMING PLHermosa31Completed10 daysInternetCity 311
8/4/20267239 S WESTERN AVEChicago Lawn18Completed10 daysPhone CallCity 311
9/7/202510521 S CORLISS AVEPullman9Completed10 daysPhone CallCity 311
9/28/2026101 E 69TH STGreater Grand Crossing6Completed10 daysInternetCity 311
9/19/2025450 W 43RD PLNew City11Completed10 daysInternetCity 311
8/26/20255050 W GUNNISON STJefferson Park45Completed10 daysInternetCity 311
7/14/20266137 N ROCKWELL STWest Ridge40Completed10 daysInternetCity 311
9/22/20265438 S KOSTNER AVEWest Elsdon23Completed10 daysPhone CallCity 311
8/2/20264549 W WELLINGTON AVEHermosa31Completed10 daysMobile DeviceCity 311
9/1/20262121 N SEMINARY AVELincoln Park43Completed10 daysInternetCity 311
8/4/20251049 W 104TH PLWashington Heights21Completed10 daysInternetCity 311
8/24/20264400 W ALTGELD STHermosa31Completed10 daysAlderman's OfficeCity 311
7/31/20262300 W 47TH STNew City12Completed10 daysPhone CallCity 311
7/13/20261310 S PLYMOUTH CTNear South Side3Completed10 daysInternetCity 311
8/18/20265217 S CENTRAL AVEGarfield Ridge23Completed10 daysPhone CallCity 311
8/15/20255046 N MELVINA AVEJefferson Park45Completed10 daysPhone CallCity 311
8/11/20252744 N NEW ENGLAND AVEMontclare36Completed10 daysPhone CallCity 311
7/10/20266100 S HERMITAGE AVEWest Englewood15Completed10 daysPhone CallCity 311
8/7/20265315 S NARRAGANSETT AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
10/9/20265245 S WHIPPLE STGage Park14Completed10 daysInternetCity 311
8/8/20252826 S CENTRAL PARK AVESouth Lawndale22Completed10 daysAlderman's OfficeCity 311
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