Septic records and services in Onawa, Iowa

In Monona County, Iowa, which covers Onawa, we have measured 2,823 parcels on septic and 2,652 on sewer. That is a county measurement. We do not hold a septic count for Onawa on its own and this page does not estimate one.

What Onawa is, in the records

Onawa is a city in Monona County, Iowa. The Census Bureau puts its internal point at 42.026476, -96.090917 and its land area at 5.27 square miles. Septic permitting and record keeping happen at the county level, not the city level, which is why every figure below is attributed to the county and linked back to the county page it came from.

What we hold for the county that covers Onawa

Our collection for Monona County, Iowa is small, at 127 septic records. Treat it as a starting point for a Onawa property rather than a search that settles the question. The county is genuinely mixed: 2,823 of 5,475 classified parcels are on septic and the rest are sewered. Which side of that line a Onawa address falls on is worth establishing before anything else. The county publishes a records portal that we were able to search without creating an account, which makes checking a specific parcel something you can do yourself in a few minutes.

Start from who you are

Septic is one subject with very different jobs inside it. These go straight to the page that does yours.

Questions people ask

Does Parcel Perfect have a septic count for Onawa?

No. We measure septic and sewer at parcel level and roll it up by county. In Monona County, Iowa, which covers Onawa, we have measured 2,823 parcels on septic and 2,652 on sewer. That is a county measurement. We do not hold a septic count for Onawa on its own and this page does not estimate one.

Which county is Onawa in?

Onawa is in Monona County, Iowa.

Records and services around Onawa

Other septic questions about Onawa

• Septic records in Onawa

• Monona County septic records — what we hold, and where the county keeps the originals
• Iowa septic regulations — the rules that actually bind here, which no page on this site restates from memory
• Iowa septic records index

ZIP codes that overlap Onawa

From the Census ZCTA-to-place relationship file, with the share of Onawa’s land area that falls in each. A ZIP is not a place boundary and the two only ever partly agree, which is exactly why both pages exist.

• ZIP 51040 (100% of the city)

Nearest other places

Straight-line distance from the Census internal point of Onawa.

• Turin — 6.4 mi
• Blencoe — 6.7 mi
• Whiting — 7.6 mi
• Castana — 9.8 mi
• Hornick — 14.0 mi
• Moorhead — 14.2 mi
• Rodney — 14.2 mi
• Little Sioux — 15.4 mi
• River Sioux — 15.6 mi
• Sloan — 15.8 mi
• Pisgah — 16.0 mi
• Smithland — 16.2 mi
• Soldier — 16.2 mi
• Mapleton — 18.2 mi
• Ute — 19.8 mi
• Oto — 20.3 mi
• Climbing Hill — 21.6 mi
• Mondamin — 22.2 mi
• Salix — 22.3 mi
• Danbury — 23.8 mi
• Magnolia — 25.6 mi
• Charter Oak — 25.9 mi
• Bronson — 27.1 mi
• Ricketts — 27.4 mi
• Anthon — 27.5 mi
• Dunlap — 27.9 mi
• Woodbine — 28.0 mi
• Modale — 28.5 mi

Get the septic design for a property here

Parcel Perfect generates a code-shaped septic design and as-built style drawing for a parcel from the records and site data we hold, and shows every parcel we have classified as septic or sewer on one map. Both are open to use for any parcel in Monona County, Iowa.

Open the parcel map and design tool