RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4493 reports) · Last sighting 2 days 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/19/2025806 N RUSH STNear North Side42Completed0 daysInternetCity 311
11/12/20259135 S UNIVERSITY AVEBurnside8Completed0 daysMobile DeviceCity 311
3/19/20265434 S ARCHER AVEGarfield Ridge23Completed0 daysPhone CallCity 311
12/26/20252720 W RASCHER AVELincoln Square40Completed0 daysPhone CallCity 311
10/3/20251900 S MILLARD AVENorth Lawndale24Completed0 daysPhone CallCity 311
2/23/20265450 N PAULINA STEdgewater40Completed0 daysInternetCity 311
4/8/20263145 N NEW ENGLAND AVEMontclare36Completed0 daysInternetCity 311
2/27/20264248 W NORTH AVEHumboldt Park26Completed0 daysPhone CallCity 311
3/20/20262200 S RIDGEWAY AVESouth Lawndale22Completed0 daysPhone CallCity 311
4/9/20261150 W 110TH PLMorgan Park21Completed0 daysPhone CallCity 311
12/26/2025131 W CERMAK RDArmour Square11Completed0 daysMobile DeviceCity 311
2/18/20263112 S CANAL STBridgeport11Completed0 daysInternetCity 311
1/7/20263125 W BELDEN AVELogan Square35Completed0 daysPhone CallCity 311
5/8/20265935 N KEATING AVEForest Glen39Completed0 daysInternetCity 311
11/21/20253751 W 58TH STWest Elsdon23Completed0 daysMobile DeviceCity 311
10/2/2025736 S LOOMIS STNear West Side34Completed0 daysPhone CallCity 311
5/22/20266952 S TALMAN AVEChicago Lawn17Completed0 daysPhone CallCity 311
5/22/20268219 S SANGAMON STAuburn Gresham17Completed0 daysPhone CallCity 311
12/4/20251117 N CENTRAL PARK AVEHumboldt Park36Completed0 daysPhone CallCity 311
12/26/20252830 S WENTWORTH AVEArmour Square11Completed0 daysMobile DeviceCity 311
1/7/20264946 S KOSTNER AVEArcher Heights14Completed0 daysMobile DeviceCity 311
3/31/20262223 W CULLERTON STLower West Side25Completed0 daysMobile DeviceCity 311
12/17/20255053 S CHAMPLAIN AVEGrand Boulevard20Completed0 daysInternetCity 311
7/20/20266129 S SACRAMENTO AVEChicago Lawn15Completed0 daysInternetCity 311
7/14/20263934 W 86TH STAshburn18Completed0 daysPhone CallCity 311
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