Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/IL/DAYTON

Dayton ZIP codes, Illinois

No ZIP code is named for Dayton, IL; addresses there use a neighbouring town's name. The ZIP code covering it is 61350. Its area code is 815.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
271
Area code
815

NANPA lists no telephone rate centre for Dayton itself, so these are the area codes of the nearest one, Ottawa (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Dayton in numbers

About 271 people live in Dayton, in 110 households. The median household income is $73,750 a year, 12% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $271,000 (about the same as the Illinois median). The median age is 55.5; 37.4% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 21 minutes.

Population271Dayton271
Households110Dayton110
Median age55.5Dayton55.5Illinois39.0US 38.9
Median household income$73,750Dayton$73,750Illinois$83,390US $80,734
Median home value$271,000Dayton$271,000Illinois$263,300US $332,700
Bachelor's degree or higher37.4%Dayton37.4%Illinois37.8%US 35.7%
Mean commute21.4 minDayton21.4 minIllinois27.8 minUS 26.4 min
Population density147 / sq miDayton147 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Dayton CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Dayton

These ZIP codes cover part of Dayton but are addressed as somewhere else.

ZIP codes overlapping Dayton
ZIP City Type Population Median income Median home
61350 Ottawa , IL Standard 23,713 $77,921 $164,500

Map of Dayton ZIP codes

61350

The ZIP codes of Dayton, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Dayton

The nearest larger towns are Ottawa (18,447 people, 2.9 mi), Naplate (589 people, 5.9 mi) and Marseilles (4,279 people, 9.7 mi).

Towns near Dayton
TownPopulationDistance
Ottawa 18,447 2.9 mi
Marseilles 4,279 9.7 mi
Sheridan 2,519 11.3 mi
Oglesby 3,570 15.7 mi
LaSalle 9,498 15.9 mi
Lake Holiday 5,641 17.3 mi
Peru 9,775 17.8 mi
Streator 12,330 18.5 mi
Mendota 6,994 19.3 mi
Morris 14,898 19.4 mi
Sandwich 7,219 20.1 mi
Spring Valley 5,476 20.5 mi
Plano 12,203 24.1 mi
Yorkville 23,617 26.8 mi

More nearby: every ZIP code in LaSalle County · Illinois ZIP codes

Cite this page

zipcodes.pro. “Dayton, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/dayton

Underlying data is public domain or openly licensed — sources, vintages and licences.