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    <p>The <a href="http://codisllc.com/blog/zoom-mkmapview-to-fit-annotations/" rel="nofollow noreferrer">link</a> posted by Jim is now dead, but i was able to find the code (which I had bookmarked somewhere). Hope this helps.</p> <pre><code>- (void)zoomToFitMapAnnotations:(MKMapView *)mapView { if ([mapView.annotations count] == 0) return; CLLocationCoordinate2D topLeftCoord; topLeftCoord.latitude = -90; topLeftCoord.longitude = 180; CLLocationCoordinate2D bottomRightCoord; bottomRightCoord.latitude = 90; bottomRightCoord.longitude = -180; for(id&lt;MKAnnotation&gt; annotation in mapView.annotations) { topLeftCoord.longitude = fmin(topLeftCoord.longitude, annotation.coordinate.longitude); topLeftCoord.latitude = fmax(topLeftCoord.latitude, annotation.coordinate.latitude); bottomRightCoord.longitude = fmax(bottomRightCoord.longitude, annotation.coordinate.longitude); bottomRightCoord.latitude = fmin(bottomRightCoord.latitude, annotation.coordinate.latitude); } MKCoordinateRegion region; region.center.latitude = topLeftCoord.latitude - (topLeftCoord.latitude - bottomRightCoord.latitude) * 0.5; region.center.longitude = topLeftCoord.longitude + (bottomRightCoord.longitude - topLeftCoord.longitude) * 0.5; // Add a little extra space on the sides region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 1.1; region.span.longitudeDelta = fabs(bottomRightCoord.longitude - topLeftCoord.longitude) * 1.1; region = [mapView regionThatFits:region]; [mapView setRegion:region animated:YES]; } </code></pre>
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    1. POPositioning MKMapView to show multiple annotations at once
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    1. COI could kiss you. This just saved me a bunch of time. I added the code to the above to handle 1 location. It got a little up close and personal. I'll post that as a response since comments tend to chew up code.
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      1. USMichael Reed
    2. COThank you very much. I added this to a subclass of `MKMapView` and changed the method to `- (void) zoomToFitAnnotations:(BOOL)animated`. Works perfectly!
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    3. COit's working very well. also it's useful. you can change zoom out or zoom in value. so region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 1.1; /// change value. when you increase value : zoom out........ when you decrease value : zoom in for example : region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 4.1;
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      1. USErhan Demirci
 

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