McNett Township, the most northerly in the county, was taken from McIntyre, February 10, 1878, it being the last township to be erected in the county with the exception of Mill Creek. It is the tenth in size and contains 23,500 acres. It was organized largely through the efforts of H. H. McNett, one of the leading citizens of that section. In the early days some iron was manufactured and afterwards coal veins were discovered which were worked to good advantage for some time, but these have been lately abandoned. There are some fine farms along the bottoms of Lycoming Creek, but most of the land is mountainous. McNett Township lies on the watershed, streams flowing in both directions, north and south.

The only village of any size is Roaring Branch, which lies half in Lycoming County and half in Tioga. The post office is in the Lycoming County portion and was established February 10, 1862, with Lloyd L. Washburn as its first postmaster.

There is also a postoffice at Ellenton, in the eastern part of the township, established August 21, 1883, with Curtis E. Helms as its first postmaster.

The schools of McNett Township are of the highest character. At one time there was a large tannery in operation at Roaring Branch, but of late years the business has been largely curtailed. The population of McNett Township in 1920 was 750.