RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4564 locations in the last 30 days (4733 reports) · Last sighting 14 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/12/20261725 N FREMONT STLincoln Park43Completed0 daysPhone CallCity 311
9/4/20251828 N WILMOT AVELogan Square32Completed0 daysPhone CallCity 311
2/6/20262233 N SEMINARY AVELincoln Park43Completed0 daysPhone CallCity 311
5/6/20261750 N CLARK STLincoln Park43Completed0 daysPhone CallCity 311
12/10/20255205 W PALMER STBelmont Cragin26Completed0 daysMobile DeviceCity 311
6/18/20263537 S UNION AVEBridgeport11Completed0 daysInternetCity 311
6/15/20266046 W DAKIN STDunning38Completed0 daysPhone CallCity 311
4/1/2026945 N WESTERN AVEWest Town36Completed0 daysMobile DeviceCity 311
7/8/20263242 W FLOURNOY STEast Garfield Park24Completed0 daysMobile DeviceCity 311
1/8/2026428 E 48TH PLGrand Boulevard3Completed0 daysMobile DeviceCity 311
11/13/20257345 N HOYNE AVERogers Park49Completed0 daysInternetCity 311
6/18/20262715 S NORMAL AVEBridgeport11Completed0 daysInternetCity 311
7/23/20265612 S WOOD STWest Englewood15Completed0 daysPhone CallCity 311
11/19/20252258 W MONROE STNear West Side27Completed0 daysInternetCity 311
2/2/20266306 W 63RD PLClearing13Completed0 daysMobile DeviceCity 311
4/29/20265250 N ROCKWELL STLincoln Square40Completed0 daysMobile DeviceCity 311
4/3/20262226 W 69TH STChicago Lawn16Completed0 daysInternetCity 311
1/5/20264529 N MALDEN STUptown46Completed0 daysMobile DeviceCity 311
11/19/202531 N MENARD AVEAustin29Completed0 daysPhone CallCity 311
6/17/202612604 S MICHIGAN AVEWest Pullman9Completed0 daysMobile DeviceCity 311
8/11/20261119 W 17TH STLower West Side25Completed0 daysPhone CallCity 311
4/21/20262355 W ADDISON STNorth Center32Completed0 daysMobile DeviceCity 311
5/15/20262648 W GLENLAKE AVEWest Ridge40Completed0 daysPhone CallCity 311
1/9/20265639 S BLACKSTONE AVEHyde Park5Completed0 daysMobile DeviceCity 311
6/11/20263317 W 55TH STGage Park14Completed0 daysInternetCity 311
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