On the surface, not really. Darfur is a part of the Republic of Sudan, not South Sudan, and so is not involved in South Sudan's conflict. But the Darfur conflict that killed so many civilians in the mid-2000s, and which the United States labeled a genocide, is not totally separate from what's happening in South Sudan.
The average cost of raising a child born in 2013 up until age 18 for a middle-income family in the U.S. is approximately $245,340 (or $304,480, adjusted for projected inflation), according to the latest annual Cost of Raising A Child report from the U.S. Department of Agriculture.
Middle-income, married-couple parents of a child born in 2015 may expect to spend $233,610 ($284,570 if projected inflation costs are factored in*) for food, shelter, and other necessities to raise a child through age 17. This does not include the cost of a college education.