Johnson Seaplane Base
Daylight today(Sep 4, 2026, local time)
About 13h 8m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Johnson Seaplane Base
Johnson Seaplane Base is a seaplane base in Rockford, United States. It sits at an elevation of 970 ft (296 m) and has 1 runway, the longest 4,000 ft / 1,219 m. It observes America/Chicago local time. The nearest airport is Buffalo Municipal Airport (KCFE), about 4.4 nm to the w.
Summary generated from this airport’s structured data — reference only.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (1)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 18W / 36W | 4,000 ft / 1,219 m | 1600 ft | Water | Unlit | Open |
Airspace in this area(1)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| MINNEAPOLIS CLASS B AREA D | Class B | Controlled | 4000 ft MSL | 10000 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Obstacle | — | 1,007 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Johnson Seaplane Base.
Frequently asked questions
Where is Johnson Seaplane Base located?
Johnson Seaplane Base is seaplane base located in Rockford, United States, at an elevation of 970 ft (296 m).
How many runways does Johnson Seaplane Base have?
Johnson Seaplane Base has 1 runway, the longest being 4,000 ft / 1,219 m.
What time zone is Johnson Seaplane Base in?
Johnson Seaplane Base is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Johnson Seaplane Base?
The magnetic variation (declination) at Johnson Seaplane Base is approximately 0.2° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Johnson Seaplane Base?
The nearest airport to Johnson Seaplane Base is Buffalo Municipal Airport (KCFE), about 4.4 nm to the w, followed by Ingleside Airport and Brandt Airport.
Is the information on this page suitable for flight planning?
No. Johnson Seaplane Base data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.