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11780 5TH Ave OCEAN, Marathon, FL 33050

Single family property built in 1955 with 1,773 sq ft of living area on a 0.11-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
$1,499,656
County assessed value (tax roll)
$1,499,656
Living area
1,773 sq ft
Lot size
0.11 acres (4,995 sq ft)
Year built
1955
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-0566 33 00346370000000

At a glance

Who owns 11780 5TH Ave OCEAN?
Monroe County property records list COSGROVE INDUSTRIES LLC as the owner of record.
What is the county just value of 11780 5TH Ave OCEAN?
$1,499,656 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-54-0566 33 00346370000000 (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 5th Ave Ocean

All 47 properties on 5th Ave 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