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1065 100TH St OCEAN, Marathon, FL 33050

Single family property built in 1989 with 1,152 sq ft of living area on a 0.12-acre lot in Marathon, Monroe County. Facts below come from the county property appraiser's public record.

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County just value (tax roll) — not a market value
$959,851
County assessed value (tax roll)
$429,015
Living area
1,152 sq ft
Lot size
0.12 acres (5,220 sq ft)
Year built
1989
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-0666 33 00352180000000

At a glance

Who owns 1065 100TH St OCEAN?
Monroe County property records list COSTA RONALD as the owner of record.
What is the county just value of 1065 100TH St OCEAN?
$959,851 on the Monroe County tax roll (as of January 1). Just value is the property appraiser's figure for property taxes — not a market value.
What is the parcel ID?
fl-54-0666 33 00352180000000 (Monroe County).

Current owner

Owner contact info

Phones, emails and mailing addresses from public Florida records are available to members.

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More on 100th St Ocean

All 21 properties on 100th St Ocean · ZIP 33050 (Marathon). Values are county just values (tax roll), not market values.

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Source: Florida Department of Revenue parcel roll; data refreshed Jun 25, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources