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droplet Flooding & Drainage πŸ›οΈ Houston Office of Emergency Management fresh

Houston Floodplain & Repetitive Loss

Floodplain designations and repetitive-loss properties to understand flood risk.

πŸ—‚οΈ
300
Records
🚩
17
Red flags
βœ…
97
Quality score
πŸ”„
annual
Update frequency

Data Detective

Tip

Scan the map for red dots and check the chart for spikes. Big jumps or drops are usually where the interesting questions live.

Source: The numbers above come straight from Houston Open Data.

πŸ“ Data quality breakdown

How healthy is this dataset across five dimensions?

Completeness 94/100
Freshness 100/100
Location 99/100
Consistency 95/100
Usefulness 100/100

πŸ—ΊοΈ Where the data lives

Up to 300 geolocated records. Red markers are flagged values.

πŸ“ˆ Activity over time

Record volume by month, or by status when no dates exist.

🚩 Open red flags

Suspicious values our scanner caught β€” see if you agree.

🚩 High · future date
95% sure

This record is dated in the future.

occurred_at 2026-07-06
A 311 request can't be created next year. A future date usually means someone typed the date wrong or a computer formatted it incorrectly.

Next step: Check for a typo or a time-zone/format bug at the source.

Houston Floodplain & Repetitive Loss Source β†—
🚩 High · future date
95% sure

This record is dated in the future.

occurred_at 2026-07-20
A 311 request can't be created next year. A future date usually means someone typed the date wrong or a computer formatted it incorrectly.

Next step: Check for a typo or a time-zone/format bug at the source.

Houston Floodplain & Repetitive Loss Source β†—
🚩 High · future date
95% sure

This record is dated in the future.

occurred_at 2026-08-02
A 311 request can't be created next year. A future date usually means someone typed the date wrong or a computer formatted it incorrectly.

Next step: Check for a typo or a time-zone/format bug at the source.

Houston Floodplain & Repetitive Loss Source β†—
🚩 High · impossible negative
85% sure

A count or amount is negative where that should be impossible.

numeric_value -63
You can't have negative days to fix a pothole, or negative permits. A negative number here is a sign of a data-entry or calculation mistake.

Next step: Confirm whether negatives represent refunds/corrections or are simply errors.

Houston Floodplain & Repetitive Loss Source β†—
🚩 High · impossible negative
85% sure

A count or amount is negative where that should be impossible.

numeric_value -77
You can't have negative days to fix a pothole, or negative permits. A negative number here is a sign of a data-entry or calculation mistake.

Next step: Confirm whether negatives represent refunds/corrections or are simply errors.

Houston Floodplain & Repetitive Loss Source β†—
🚩 High · impossible negative
85% sure

A count or amount is negative where that should be impossible.

numeric_value -18
You can't have negative days to fix a pothole, or negative permits. A negative number here is a sign of a data-entry or calculation mistake.

Next step: Confirm whether negatives represent refunds/corrections or are simply errors.

Houston Floodplain & Repetitive Loss Source β†—
🚩 Medium · missing value
90% sure

The field "reported_by" is empty in 33% of records.

reported_by 33% empty
Think of a class roster where most students never filled in their phone number. If "reported_by" is blank 33% of the time, we can't trust any total or map that depends on it.

Next step: Ask the owning department why this field is so often blank.

Houston Floodplain & Repetitive Loss Source β†—
🚩 Medium · broken coordinates
85% sure

Coordinates are missing, 0/0, or outside the Houston area.

lat/lng 0, 0
A point at 0,0 sits in the ocean off Africa. If a Houston event maps there, the location data is broken and the map will mislead people.

Next step: Re-geocode the address or drop the broken point from maps.

Houston Floodplain & Repetitive Loss Source β†—

⚠️ Known issues

  • β€’Updated infrequently
  • β€’Boundaries simplified

πŸ’‘ Public use cases

  • β€’Check flood risk by area
  • β€’Find repeat-loss clusters
  • β€’Plan resilience investments

πŸ“ Geo fields

latitude longitude zip

πŸ•’ Time fields

updated_date

Records: 300

Update frequency: annual

Last imported: 23 hours ago

Search the Houston Open Data catalog β†—