O'brien County, IA Parcel Data
Ownership, APNs & Property Records

Parcel pages, assessor-sourced fields, and API lookup examples for O'brien County.

Parcel records in O'brien County

Browse indexed parcel pages for O'brien County, Iowa. Each page includes assessor-sourced property attributes, transfer history, and a stable parcel identifier for API lookups.

Properties indexed
18,953
Example APN format
0000028525
From Hartley

Fields on parcel pages

  • Parcel ID (APN)
  • Street address and unit
  • Transfer / sale history
  • Living area, beds, baths, year built
  • Lot size (acres)
  • Parcel boundary geometry (via API)

API lookup example

Query by state, county, and parcel ID (Bearer token required). See Property Data API and API reference.

curl -G 'https://app.realie.ai/api/public/property/parcelId' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  --data-urlencode state='IA' \
  --data-urlencode county='O'\''BRIEN' \
  --data-urlencode parcelId='0000028525'

MCP and CLI workflows are documented at docs.realie.ai/realie-mcp-server.

Iowa

ZIP Codesby Total Population

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Total Population
1136,430

DistributionTotal Population

Demographics

Total Population

14,126

Median Age

39.5

Population Under 18

24.4%

Population 65+

21.2%

Total Households

5,809

Average Household Size

2.36

O'brien County, IA housing and demographic statistics

Selected Census estimates for O'brien County, IA
MeasureEstimate
Population14,126
Households5,809
Housing units6,564
Median household income$68,356
Median monthly gross rent$868
Median owner-occupied home value$173,100
Owner-occupied share of occupied housing76.1%
Vacant share of housing units11.5%
Renters paying 30% or more of income on rent27.2%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions.

Area property statistics

Recorded property characteristics and residential parcel-sale records for O'brien County, IA. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records203Recorded——
Average recorded sale amount$213,640Recorded——

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: April 2026; not verified completeness.

Recorded property statistics

Reported property statistics for O'brien County, IA
MeasureO'brien County, IAIowa
Median recorded sale amount$185,000$241,000
Recorded amount, 10th percentile$100,000$112,500
Recorded amount, 90th percentile$330,000$496,200
Average recorded floor area (sq ft)2,0461,900
Average recorded bedrooms3.23.1
Average recorded bathrooms2.22
Median year built19501968
Condominium share of properties0.7%2.5%

O'brien County, IA: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Iowa: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

State input files published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

Parcel sale records
Oct 1, 2025–Sep 30, 2026
183
Model estimateHistorical error-adjusted range: 174–195.
Median sale amount
September 2026
Unavailable
There is not enough supported history for this estimate.
Median-amount change
September 2026 versus the prior year
Unavailable
There is not enough supported history for this estimate.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: April 2026; not a verified completeness date.

Cities in O'brien County

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