Defiance, OH: Population, ZIP Codes & Nearby Cities

Defiance is a small incorporated city in Defiance County, Ohio. In the dataset behind this page it has an estimated population of 18,460, sits at 41.281°N, 84.366°W, and observes Eastern time. Below you will find how it ranks inside Ohio, which ZIP codes it uses, the closest places around it, and how far it is from major US cities.

What are the key facts about Defiance, OH?

What is the population of Defiance, OH?

Defiance has an estimated population of 18,460. That makes it the 109th largest of the 1,202 places we list in Ohio, and the largest place in its county. The typical place in Ohio has about 1,244 residents, so Defiance is roughly 14.8 times the size of a typical neighbor in the state.

Estimates for places of this size carry wider margins of error than those for big cities, so treat the figure as a guide to scale. Our guide to understanding city population numbers explains why sources disagree.

Places in Ohio with a similar population include Berea (18,609), Forest Park (18,583), Mayfield Heights (18,487), Brook Park (18,382), Niles (18,176). Comparing these pages is a quick way to see how Defiance differs from communities of the same scale.

How dense is Defiance?

Defiance has about 1,326 people per square mile (512 per square kilometer), which we classify as suburban. Within Ohio, it is denser than about 56% of the listed places. Land at this level is usually a mix of single-family neighborhoods, shopping corridors and parks, where driving is common but destinations are close. Read how to interpret population density to see how we draw these lines.

What ZIP codes does Defiance use?

Defiance uses one ZIP code: 43512. A single code usually means a compact delivery area, but the same code may also serve addresses just outside the town line. Codes beginning with 4 are assigned to the Great Lakes and Ohio Valley (Indiana, Kentucky, Michigan and Ohio). Learn more in our guide to how ZIP codes work or check any code with the ZIP code lookup.

What time zone is Defiance in?

Defiance is in the Eastern time zone, which is UTC−5 from Coordinated Universal Time in standard time (IANA zone America/New_York). The area observes daylight saving time, so clocks move forward in March and back in November. The nearest listed place in a different time zone is La Porte, IN, about 124 miles away, which gives a sense of how far the nearest zone boundary may be. Current local time: see the Eastern time hub. For the rules behind these zones, read US time zones explained.

Where is Defiance located in Ohio?

Defiance lies in the northwestern part of Ohio, at 41.281° north latitude and 84.366° west longitude. The state capital, Columbus, is about 115 miles to the southeast. The closest listed place in another state is Auburn, IN, roughly 36 miles to the west, which shows how near Defiance is to a state line. For big-city services, the nearest place with more than 100,000 people is Fort Wayne, IN, 43 miles to the west.

Which cities are near Defiance, OH?

The closest listed place to Defiance is Napoleon, OH, 14.9 miles to the northeast. Of the eight nearest places below, 0 are in the same county. Distances are straight-line (great-circle) miles measured between place centers; see how distance is calculated.

Which county is Defiance in?

Defiance is in Defiance County, which has the Federal Information Processing Standards (FIPS) code 39039. The county contains 3 places in our data, 1 of which have their own page here and 2 smaller communities that appear only in county and state lists. Other places in the county include Hicksville (3,464), Ney (341). Codes like this one help separate places that share a name; see the guide to counties and FIPS codes.

How far is Defiance from major US cities?

Among six major hubs, Defiance is closest to Chicago, IL at about 176 miles and farthest from Los Angeles, CA at about 1,912 miles in a straight line. Road distances are usually 10 to 30 percent longer. Try the distance calculator for any other pair.

Are there other places called Defiance?

Yes. Our data lists 3 other places named Defiance: Defiance, PA (346), Defiance, IA (263), Defiance, MO (93). When you search for Defiance, add the state or county so you land on the right one. This page covers the Defiance in Defiance County, Ohio.

Planning a move to Defiance?

If you are weighing Defiance, start with the practical numbers: how far it is from where you live, whether it changes your time zone, and how its size and density compare with your current city. Use the distance calculator to measure the trip from where you live. The radius search tool lists every place within any distance of it. Our checklist for comparing cities explains what to check next.

Where to go next

Population and density come from a compiled dataset and are estimates. They may differ from official Census Bureau counts. Verify important figures at census.gov.