Buenos Aires is about 1.3 times smaller than Lincoln.

Lincoln (map shows its 45 named neighbourhoods; the area covers the whole city) is approximately 262 sq km, while Buenos Aires is approximately 203 sq km, making Buenos Aires 77.64% the size of Lincoln.
Tip: This to-scale comparison of Lincoln vs. Buenos Aires uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.