Onawa, IA 51040

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City/Town Names	Most Popular Resources	Current Weather & 7-Day Forecast
Preferred Name, USPS Onawa, IA 51040 Acceptable Alternative Turin, IA 51040	Search the MLS in Onawa, IA Property & Neighborhood Reports Apartments | Job Search Instant Background Checks

The 51040 ZIP Code is centered¹ in Monona County at latitude 42.029 and longitude -96.098 (Panoramio Photos). It is a standard type ZIP Code. Monona County is in the Central Time Zone (UTC -6 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 51040 was 3,662 with 1,727 housing units; a land area land area of 116.08 sq. miles; a water area of 1.82 sq. miles; and a population density of 31.55 people per sq. mile for Census 2000. Demographic Profile

Onawa, IA 51040 Map (Marker is ZIP Code Centroid)

Local Search, 51040 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Onawa, IA (< 0.1 mile) Kennebec, IA (6.4 miles NE) Blencoe, IA (6.8 miles S) Turin, IA (6.8 miles E) Whiting, IA (7.4 miles NNW)

Decatur, NE (8 miles W) Castana, IA (10.2 miles ENE) Ticonic, IA (12.1 miles NE) Hornick, IA (14 miles N) Rodney, IA (14.4 miles NNE)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Arizona, NE (14.9 miles S)

ZIP Codes - Key Concepts

1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
5. ZIP Codes are only loosely tied to cities.

¹ Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.