NEIGHBORSCORE

Alton, Iowa · ZIP 51003

Alton — ZIP 51003

Crime DataSchools

Alton (51003) scores 88/100 — Excellent for Iowa. Safety: Lower reported-crime rate under the available data tier. Schools: Higher reported proficiency and grade-band coverage. A premium market - pricier than most of the state. The typical home value here is $317K.

88OUT OF 100

Overall NeighborScore

A-Excellent

Tap a tab to compare 51003 against its city, state, or the nation.

Lower reported-crime rate under the available data tier.

Safety index95/100
Violent crime share13%
Property crime share88%

Higher reported proficiency and grade-band coverage.

School index80/100
Avg math proficiency83%
Avg reading proficiency87%
Schools nearby1

A premium market - pricier than most of the state.

Affordability index38/100
Typical home value$317K

How this score is calculated: the NeighborScore composite weights crime 53% and schools 47%, each normalized to the local area. Home affordability is shown for context and is not factored into the overall score. Sources & methodology →

Last refreshed — Schools: Aug 2026 · Real estate: Aug 2026 · Demographics: Jun 2026

Nearby Neighborhoods

Not the right fit? See how adjacent ZIPs score — tap to jump over.

Orange City, IowaOrange CityZIP 51041
88= even vs here
Granville, IowaGranvilleZIP 51022
94▲6 vs here
Maurice, IowaMauriceZIP 51036
89▲1 vs here
Hospers, IowaHospersZIP 51238
86▼2 vs here

Real Estate Snapshot

Typical Home Value

$317K

Median Rent

—

Days on Market

—

Sale-to-List

—

Typical Home Value — 24 Months

Crime Overview

Total Incidents

104

Violent Crime

13

Property Crime

91

Crime statistics for this area are estimated from FBI-reported county-level data for Sioux County, Iowa (2025). This ZIP does not yet have city-specific monthly crime data, so figures reflect the entire county rather than this ZIP alone.

Full Crime Report →

Nearby Schools

Grades
MOC-Floyd Valley Middle School06–08337
83%
87%

Directory and latest enrollment: NCES Common Core of Data (SY 2024–25 where reported). Proficiency: U.S. Department of Education EDFacts SY 2021–22; state standards are not directly comparable.

Full School Report →

Demographics

Population

1,815

Median Income

$101K

Homeownership

87%

Median Age

37.1 yrs

Source: US Census Bureau ACS 5-Year Estimates (2024).

Map

Frequently Asked Questions

ZIP 51003 has a reported-crime score of 95/100. A higher score represents a lower reported-crime rate under the best available data tier for this ZIP; it is not a guarantee of safety. Review the crime report and current local police data before making a decision.
ZIP 51003 has a school score of 80/100. The index combines reported SY 2021–22 math and reading proficiency with grade-band coverage. Nearby or county-level estimates may be used where ZIP-level reporting is sparse, and state assessment standards are not directly comparable.
The latest home value or sale-price figure available for ZIP 51003 is approximately $317K. The profile identifies the underlying source; Zillow ZHVI is a typical home value measure, while Redfin data is a median sale-price measure. These are different metrics and may lag current listings.
ZIP 51003 in Alton has an overall NeighborScore of 88/100. It combines the crime score (53%) and school score (47%); affordability is context only. Use the component data and its coverage notes rather than treating the composite as a complete measure of livability.